Home / 129,344.40-193,783.10-54,330.30

Finding the Fourth Proportional to 129,344.40, 193,783.10 and 54,330.30

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Solution

The fourth proportional to 129,344.40, 193,783.10 and 54,330.30 is: 81,397.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,344.40 : 193,783.10 = 54,330.30 : x
  2. Step 2: Convert to fraction form
    129,344.40/193,783.10 = 54,330.30/x
  3. Step 3: Cross multiply
    129,344.40x = 193,783.10 × 54,330.30
  4. Step 4: Simplify right side
    129,344.40x = 10,528,293,957.93
  5. Step 5: Solve for x
    x = 10,528,293,957.93/129,344.40
  6. Step 6: Final answer
    x = 81,397.37

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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.