Home / 112,732.76-155,496.31-72,497.43

Finding the Fourth Proportional to 112,732.76, 155,496.31 and 72,497.43

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Solution

The fourth proportional to 112,732.76, 155,496.31 and 72,497.43 is: 99,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,732.76 : 155,496.31 = 72,497.43 : x
  2. Step 2: Convert to fraction form
    112,732.76/155,496.31 = 72,497.43/x
  3. Step 3: Cross multiply
    112,732.76x = 155,496.31 × 72,497.43
  4. Step 4: Simplify right side
    112,732.76x = 11,273,082,668.24
  5. Step 5: Solve for x
    x = 11,273,082,668.24/112,732.76
  6. Step 6: Final answer
    x = 99,998.28

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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.