Home / 129,047.04-178,092-72,466.56

Finding the Fourth Proportional to 129,047.04, 178,092 and 72,466.56

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Solution

The fourth proportional to 129,047.04, 178,092 and 72,466.56 is: 100,007.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,047.04 : 178,092 = 72,466.56 : x
  2. Step 2: Convert to fraction form
    129,047.04/178,092 = 72,466.56/x
  3. Step 3: Cross multiply
    129,047.04x = 178,092 × 72,466.56
  4. Step 4: Simplify right side
    129,047.04x = 12,905,714,603.52
  5. Step 5: Solve for x
    x = 12,905,714,603.52/129,047.04
  6. Step 6: Final answer
    x = 100,007.83

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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.