Home / 185,356.90-255,785.65-100,472.14

Finding the Fourth Proportional to 185,356.90, 255,785.65 and 100,472.14

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Solution

The fourth proportional to 185,356.90, 255,785.65 and 100,472.14 is: 138,647.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,356.90 : 255,785.65 = 100,472.14 : x
  2. Step 2: Convert to fraction form
    185,356.90/255,785.65 = 100,472.14/x
  3. Step 3: Cross multiply
    185,356.90x = 255,785.65 × 100,472.14
  4. Step 4: Simplify right side
    185,356.90x = 25,699,331,636.79
  5. Step 5: Solve for x
    x = 25,699,331,636.79/185,356.90
  6. Step 6: Final answer
    x = 138,647.83

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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.