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Finding the Fourth Proportional to 132,128.70, 198,205.20 and 37,358.70

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Solution

The fourth proportional to 132,128.70, 198,205.20 and 37,358.70 is: 56,041.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,128.70 : 198,205.20 = 37,358.70 : x
  2. Step 2: Convert to fraction form
    132,128.70/198,205.20 = 37,358.70/x
  3. Step 3: Cross multiply
    132,128.70x = 198,205.20 × 37,358.70
  4. Step 4: Simplify right side
    132,128.70x = 7,404,688,605.24
  5. Step 5: Solve for x
    x = 7,404,688,605.24/132,128.70
  6. Step 6: Final answer
    x = 56,041.49

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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.