Home / 140,211.92-193,493.10-76,551.16

Finding the Fourth Proportional to 140,211.92, 193,493.10 and 76,551.16

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Solution

The fourth proportional to 140,211.92, 193,493.10 and 76,551.16 is: 105,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,211.92 : 193,493.10 = 76,551.16 : x
  2. Step 2: Convert to fraction form
    140,211.92/193,493.10 = 76,551.16/x
  3. Step 3: Cross multiply
    140,211.92x = 193,493.10 × 76,551.16
  4. Step 4: Simplify right side
    140,211.92x = 14,812,121,257.00
  5. Step 5: Solve for x
    x = 14,812,121,257.00/140,211.92
  6. Step 6: Final answer
    x = 105,640.96

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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.