Home / 129,158.15-193,740.86-35,663.90

Finding the Fourth Proportional to 129,158.15, 193,740.86 and 35,663.90

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Solution

The fourth proportional to 129,158.15, 193,740.86 and 35,663.90 is: 53,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,158.15 : 193,740.86 = 35,663.90 : x
  2. Step 2: Convert to fraction form
    129,158.15/193,740.86 = 35,663.90/x
  3. Step 3: Cross multiply
    129,158.15x = 193,740.86 × 35,663.90
  4. Step 4: Simplify right side
    129,158.15x = 6,909,553,777.41
  5. Step 5: Solve for x
    x = 6,909,553,777.41/129,158.15
  6. Step 6: Final answer
    x = 53,496.85

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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.