Home / 116,761.86-161,127.09-71,422.92

Finding the Fourth Proportional to 116,761.86, 161,127.09 and 71,422.92

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Solution

The fourth proportional to 116,761.86, 161,127.09 and 71,422.92 is: 98,561.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,761.86 : 161,127.09 = 71,422.92 : x
  2. Step 2: Convert to fraction form
    116,761.86/161,127.09 = 71,422.92/x
  3. Step 3: Cross multiply
    116,761.86x = 161,127.09 × 71,422.92
  4. Step 4: Simplify right side
    116,761.86x = 11,508,167,258.90
  5. Step 5: Solve for x
    x = 11,508,167,258.90/116,761.86
  6. Step 6: Final answer
    x = 98,561.01

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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.