Home / 114,711.78-158,359.82-71,715.17

Finding the Fourth Proportional to 114,711.78, 158,359.82 and 71,715.17

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Solution

The fourth proportional to 114,711.78, 158,359.82 and 71,715.17 is: 99,002.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,711.78 : 158,359.82 = 71,715.17 : x
  2. Step 2: Convert to fraction form
    114,711.78/158,359.82 = 71,715.17/x
  3. Step 3: Cross multiply
    114,711.78x = 158,359.82 × 71,715.17
  4. Step 4: Simplify right side
    114,711.78x = 11,356,800,262.09
  5. Step 5: Solve for x
    x = 11,356,800,262.09/114,711.78
  6. Step 6: Final answer
    x = 99,002.91

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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.