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Finding the Fourth Proportional to 125,760, 173,553.60 and 69,170.16

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Solution

The fourth proportional to 125,760, 173,553.60 and 69,170.16 is: 95,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,760 : 173,553.60 = 69,170.16 : x
  2. Step 2: Convert to fraction form
    125,760/173,553.60 = 69,170.16/x
  3. Step 3: Cross multiply
    125,760x = 173,553.60 × 69,170.16
  4. Step 4: Simplify right side
    125,760x = 12,004,730,280.58
  5. Step 5: Solve for x
    x = 12,004,730,280.58/125,760
  6. Step 6: Final answer
    x = 95,457.46

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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.