Home / 129,211.71-193,817.53-40,472.16

Finding the Fourth Proportional to 129,211.71, 193,817.53 and 40,472.16

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Solution

The fourth proportional to 129,211.71, 193,817.53 and 40,472.16 is: 60,708.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,211.71 : 193,817.53 = 40,472.16 : x
  2. Step 2: Convert to fraction form
    129,211.71/193,817.53 = 40,472.16/x
  3. Step 3: Cross multiply
    129,211.71x = 193,817.53 × 40,472.16
  4. Step 4: Simplify right side
    129,211.71x = 7,844,214,084.96
  5. Step 5: Solve for x
    x = 7,844,214,084.96/129,211.71
  6. Step 6: Final answer
    x = 60,708.23

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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.