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Finding the Fourth Proportional to 125,285.76, 172,895.04 and 67,925.52

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Solution

The fourth proportional to 125,285.76, 172,895.04 and 67,925.52 is: 93,737.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,285.76 : 172,895.04 = 67,925.52 : x
  2. Step 2: Convert to fraction form
    125,285.76/172,895.04 = 67,925.52/x
  3. Step 3: Cross multiply
    125,285.76x = 172,895.04 × 67,925.52
  4. Step 4: Simplify right side
    125,285.76x = 11,743,985,497.42
  5. Step 5: Solve for x
    x = 11,743,985,497.42/125,285.76
  6. Step 6: Final answer
    x = 93,737.59

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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.