Home / 116,767.17-161,139.65-66,469.41

Finding the Fourth Proportional to 116,767.17, 161,139.65 and 66,469.41

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Solution

The fourth proportional to 116,767.17, 161,139.65 and 66,469.41 is: 91,728.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,767.17 : 161,139.65 = 66,469.41 : x
  2. Step 2: Convert to fraction form
    116,767.17/161,139.65 = 66,469.41/x
  3. Step 3: Cross multiply
    116,767.17x = 161,139.65 × 66,469.41
  4. Step 4: Simplify right side
    116,767.17x = 10,710,857,130.76
  5. Step 5: Solve for x
    x = 10,710,857,130.76/116,767.17
  6. Step 6: Final answer
    x = 91,728.33

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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.