Home / 121,220.41-181,858.17-36,988.12

Finding the Fourth Proportional to 121,220.41, 181,858.17 and 36,988.12

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Solution

The fourth proportional to 121,220.41, 181,858.17 and 36,988.12 is: 55,490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,220.41 : 181,858.17 = 36,988.12 : x
  2. Step 2: Convert to fraction form
    121,220.41/181,858.17 = 36,988.12/x
  3. Step 3: Cross multiply
    121,220.41x = 181,858.17 × 36,988.12
  4. Step 4: Simplify right side
    121,220.41x = 6,726,591,814.94
  5. Step 5: Solve for x
    x = 6,726,591,814.94/121,220.41
  6. Step 6: Final answer
    x = 55,490.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.