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Finding the Fourth Proportional to 108,300.80, 162,451.20 and 38,156.80

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Solution

The fourth proportional to 108,300.80, 162,451.20 and 38,156.80 is: 57,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,300.80 : 162,451.20 = 38,156.80 : x
  2. Step 2: Convert to fraction form
    108,300.80/162,451.20 = 38,156.80/x
  3. Step 3: Cross multiply
    108,300.80x = 162,451.20 × 38,156.80
  4. Step 4: Simplify right side
    108,300.80x = 6,198,617,948.16
  5. Step 5: Solve for x
    x = 6,198,617,948.16/108,300.80
  6. Step 6: Final answer
    x = 57,235.20

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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.