Home / 126,024-173,938.20-72,345.12

Finding the Fourth Proportional to 126,024, 173,938.20 and 72,345.12

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Solution

The fourth proportional to 126,024, 173,938.20 and 72,345.12 is: 99,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,024 : 173,938.20 = 72,345.12 : x
  2. Step 2: Convert to fraction form
    126,024/173,938.20 = 72,345.12/x
  3. Step 3: Cross multiply
    126,024x = 173,938.20 × 72,345.12
  4. Step 4: Simplify right side
    126,024x = 12,583,579,951.58
  5. Step 5: Solve for x
    x = 12,583,579,951.58/126,024
  6. Step 6: Final answer
    x = 99,850.66

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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.