Home / 108,640.10-162,960.15-38,510.30

Finding the Fourth Proportional to 108,640.10, 162,960.15 and 38,510.30

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Solution

The fourth proportional to 108,640.10, 162,960.15 and 38,510.30 is: 57,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,640.10 : 162,960.15 = 38,510.30 : x
  2. Step 2: Convert to fraction form
    108,640.10/162,960.15 = 38,510.30/x
  3. Step 3: Cross multiply
    108,640.10x = 162,960.15 × 38,510.30
  4. Step 4: Simplify right side
    108,640.10x = 6,275,644,264.55
  5. Step 5: Solve for x
    x = 6,275,644,264.55/108,640.10
  6. Step 6: Final answer
    x = 57,765.45

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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.