Home / 136,748.32-205,160.15-47,990.14

Finding the Fourth Proportional to 136,748.32, 205,160.15 and 47,990.14

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Solution

The fourth proportional to 136,748.32, 205,160.15 and 47,990.14 is: 71,998.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,748.32 : 205,160.15 = 47,990.14 : x
  2. Step 2: Convert to fraction form
    136,748.32/205,160.15 = 47,990.14/x
  3. Step 3: Cross multiply
    136,748.32x = 205,160.15 × 47,990.14
  4. Step 4: Simplify right side
    136,748.32x = 9,845,664,320.92
  5. Step 5: Solve for x
    x = 9,845,664,320.92/136,748.32
  6. Step 6: Final answer
    x = 71,998.43

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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.