Home / 129,251.70-178,459.20-93,603.60

Finding the Fourth Proportional to 129,251.70, 178,459.20 and 93,603.60

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Solution

The fourth proportional to 129,251.70, 178,459.20 and 93,603.60 is: 129,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,251.70 : 178,459.20 = 93,603.60 : x
  2. Step 2: Convert to fraction form
    129,251.70/178,459.20 = 93,603.60/x
  3. Step 3: Cross multiply
    129,251.70x = 178,459.20 × 93,603.60
  4. Step 4: Simplify right side
    129,251.70x = 16,704,423,573.12
  5. Step 5: Solve for x
    x = 16,704,423,573.12/129,251.70
  6. Step 6: Final answer
    x = 129,239.49

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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.