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Finding the Fourth Proportional to 125,870.52, 173,700 and 69,280.68

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Solution

The fourth proportional to 125,870.52, 173,700 and 69,280.68 is: 95,606.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,870.52 : 173,700 = 69,280.68 : x
  2. Step 2: Convert to fraction form
    125,870.52/173,700 = 69,280.68/x
  3. Step 3: Cross multiply
    125,870.52x = 173,700 × 69,280.68
  4. Step 4: Simplify right side
    125,870.52x = 12,034,054,116.00
  5. Step 5: Solve for x
    x = 12,034,054,116.00/125,870.52
  6. Step 6: Final answer
    x = 95,606.61

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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.