Home / 108,138.16-149,234.92-62,197.72

Finding the Fourth Proportional to 108,138.16, 149,234.92 and 62,197.72

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Solution

The fourth proportional to 108,138.16, 149,234.92 and 62,197.72 is: 85,835.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,138.16 : 149,234.92 = 62,197.72 : x
  2. Step 2: Convert to fraction form
    108,138.16/149,234.92 = 62,197.72/x
  3. Step 3: Cross multiply
    108,138.16x = 149,234.92 × 62,197.72
  4. Step 4: Simplify right side
    108,138.16x = 9,282,072,141.47
  5. Step 5: Solve for x
    x = 9,282,072,141.47/108,138.16
  6. Step 6: Final answer
    x = 85,835.31

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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.