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Finding the Fourth Proportional to 125,931.03, 173,784.06 and 69,342

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Solution

The fourth proportional to 125,931.03, 173,784.06 and 69,342 is: 95,691.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,931.03 : 173,784.06 = 69,342 : x
  2. Step 2: Convert to fraction form
    125,931.03/173,784.06 = 69,342/x
  3. Step 3: Cross multiply
    125,931.03x = 173,784.06 × 69,342
  4. Step 4: Simplify right side
    125,931.03x = 12,050,534,288.52
  5. Step 5: Solve for x
    x = 12,050,534,288.52/125,931.03
  6. Step 6: Final answer
    x = 95,691.54

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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.