Home / 136,118.92-187,844.28-75,688.90

Finding the Fourth Proportional to 136,118.92, 187,844.28 and 75,688.90

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Solution

The fourth proportional to 136,118.92, 187,844.28 and 75,688.90 is: 104,450.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,118.92 : 187,844.28 = 75,688.90 : x
  2. Step 2: Convert to fraction form
    136,118.92/187,844.28 = 75,688.90/x
  3. Step 3: Cross multiply
    136,118.92x = 187,844.28 × 75,688.90
  4. Step 4: Simplify right side
    136,118.92x = 14,217,726,924.49
  5. Step 5: Solve for x
    x = 14,217,726,924.49/136,118.92
  6. Step 6: Final answer
    x = 104,450.78

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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.