Home / 136,549.11-188,444.13-76,120.17

Finding the Fourth Proportional to 136,549.11, 188,444.13 and 76,120.17

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Solution

The fourth proportional to 136,549.11, 188,444.13 and 76,120.17 is: 105,049.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,549.11 : 188,444.13 = 76,120.17 : x
  2. Step 2: Convert to fraction form
    136,549.11/188,444.13 = 76,120.17/x
  3. Step 3: Cross multiply
    136,549.11x = 188,444.13 × 76,120.17
  4. Step 4: Simplify right side
    136,549.11x = 14,344,399,211.10
  5. Step 5: Solve for x
    x = 14,344,399,211.10/136,549.11
  6. Step 6: Final answer
    x = 105,049.38

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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.