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Finding the Fourth Proportional to 125,804, 173,609.52 and 69,217.40

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Solution

The fourth proportional to 125,804, 173,609.52 and 69,217.40 is: 95,520.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,804 : 173,609.52 = 69,217.40 : x
  2. Step 2: Convert to fraction form
    125,804/173,609.52 = 69,217.40/x
  3. Step 3: Cross multiply
    125,804x = 173,609.52 × 69,217.40
  4. Step 4: Simplify right side
    125,804x = 12,016,799,589.65
  5. Step 5: Solve for x
    x = 12,016,799,589.65/125,804
  6. Step 6: Final answer
    x = 95,520.01

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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.