Home / 121,053,901.09-167,040,588.18-68,120,384.59

Finding the Fourth Proportional to 121,053,901.09, 167,040,588.18 and 68,120,384.59

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Solution

The fourth proportional to 121,053,901.09, 167,040,588.18 and 68,120,384.59 is: 93,998,367.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,053,901.09 : 167,040,588.18 = 68,120,384.59 : x
  2. Step 2: Convert to fraction form
    121,053,901.09/167,040,588.18 = 68,120,384.59/x
  3. Step 3: Cross multiply
    121,053,901.09x = 167,040,588.18 × 68,120,384.59
  4. Step 4: Simplify right side
    121,053,901.09x = 11,378,869,108,543,808
  5. Step 5: Solve for x
    x = 11,378,869,108,543,808/121,053,901.09
  6. Step 6: Final answer
    x = 93,998,367.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.