Home / 108,931.35-150,339.38-61,184.70

Finding the Fourth Proportional to 108,931.35, 150,339.38 and 61,184.70

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Solution

The fourth proportional to 108,931.35, 150,339.38 and 61,184.70 is: 84,442.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,931.35 : 150,339.38 = 61,184.70 : x
  2. Step 2: Convert to fraction form
    108,931.35/150,339.38 = 61,184.70/x
  3. Step 3: Cross multiply
    108,931.35x = 150,339.38 × 61,184.70
  4. Step 4: Simplify right side
    108,931.35x = 9,198,469,557.56
  5. Step 5: Solve for x
    x = 9,198,469,557.56/108,931.35
  6. Step 6: Final answer
    x = 84,442.81

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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.