Home / 116,724.60-161,050.68-65,727

Finding the Fourth Proportional to 116,724.60, 161,050.68 and 65,727

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Solution

The fourth proportional to 116,724.60, 161,050.68 and 65,727 is: 90,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,724.60 : 161,050.68 = 65,727 : x
  2. Step 2: Convert to fraction form
    116,724.60/161,050.68 = 65,727/x
  3. Step 3: Cross multiply
    116,724.60x = 161,050.68 × 65,727
  4. Step 4: Simplify right side
    116,724.60x = 10,585,378,044.36
  5. Step 5: Solve for x
    x = 10,585,378,044.36/116,724.60
  6. Step 6: Final answer
    x = 90,686.78

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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.