Home / 121,535.91-167,719.57-67,088.09

Finding the Fourth Proportional to 121,535.91, 167,719.57 and 67,088.09

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Solution

The fourth proportional to 121,535.91, 167,719.57 and 67,088.09 is: 92,581.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,535.91 : 167,719.57 = 67,088.09 : x
  2. Step 2: Convert to fraction form
    121,535.91/167,719.57 = 67,088.09/x
  3. Step 3: Cross multiply
    121,535.91x = 167,719.57 × 67,088.09
  4. Step 4: Simplify right side
    121,535.91x = 11,251,985,858.50
  5. Step 5: Solve for x
    x = 11,251,985,858.50/121,535.91
  6. Step 6: Final answer
    x = 92,581.57

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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.