Home / 153,151.43-229,577.17-85,716.40

Finding the Fourth Proportional to 153,151.43, 229,577.17 and 85,716.40

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Solution

The fourth proportional to 153,151.43, 229,577.17 and 85,716.40 is: 128,490.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,151.43 : 229,577.17 = 85,716.40 : x
  2. Step 2: Convert to fraction form
    153,151.43/229,577.17 = 85,716.40/x
  3. Step 3: Cross multiply
    153,151.43x = 229,577.17 × 85,716.40
  4. Step 4: Simplify right side
    153,151.43x = 19,678,528,607.27
  5. Step 5: Solve for x
    x = 19,678,528,607.27/153,151.43
  6. Step 6: Final answer
    x = 128,490.66

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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.