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Finding the Fourth Proportional to 104,508.32, 144,262.84 and 72,695.68

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Solution

The fourth proportional to 104,508.32, 144,262.84 and 72,695.68 is: 100,348.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,508.32 : 144,262.84 = 72,695.68 : x
  2. Step 2: Convert to fraction form
    104,508.32/144,262.84 = 72,695.68/x
  3. Step 3: Cross multiply
    104,508.32x = 144,262.84 × 72,695.68
  4. Step 4: Simplify right side
    104,508.32x = 10,487,285,252.53
  5. Step 5: Solve for x
    x = 10,487,285,252.53/104,508.32
  6. Step 6: Final answer
    x = 100,348.81

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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.