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Finding the Fourth Proportional to 128,957.46, 193,424.72 and 44,715.73

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Solution

The fourth proportional to 128,957.46, 193,424.72 and 44,715.73 is: 67,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,957.46 : 193,424.72 = 44,715.73 : x
  2. Step 2: Convert to fraction form
    128,957.46/193,424.72 = 44,715.73/x
  3. Step 3: Cross multiply
    128,957.46x = 193,424.72 × 44,715.73
  4. Step 4: Simplify right side
    128,957.46x = 8,649,127,554.85
  5. Step 5: Solve for x
    x = 8,649,127,554.85/128,957.46
  6. Step 6: Final answer
    x = 67,069.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.