Home / 80,126.88-120,153.60-42,677.16

Finding the Fourth Proportional to 80,126.88, 120,153.60 and 42,677.16

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Solution

The fourth proportional to 80,126.88, 120,153.60 and 42,677.16 is: 63,996.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,126.88 : 120,153.60 = 42,677.16 : x
  2. Step 2: Convert to fraction form
    80,126.88/120,153.60 = 42,677.16/x
  3. Step 3: Cross multiply
    80,126.88x = 120,153.60 × 42,677.16
  4. Step 4: Simplify right side
    80,126.88x = 5,127,814,411.78
  5. Step 5: Solve for x
    x = 5,127,814,411.78/80,126.88
  6. Step 6: Final answer
    x = 63,996.18

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1.5x scale

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.