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Finding the Fourth Proportional to 108,135.60, 162,203.40 and 38,005.80

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Solution

The fourth proportional to 108,135.60, 162,203.40 and 38,005.80 is: 57,008.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,135.60 : 162,203.40 = 38,005.80 : x
  2. Step 2: Convert to fraction form
    108,135.60/162,203.40 = 38,005.80/x
  3. Step 3: Cross multiply
    108,135.60x = 162,203.40 × 38,005.80
  4. Step 4: Simplify right side
    108,135.60x = 6,164,669,979.72
  5. Step 5: Solve for x
    x = 6,164,669,979.72/108,135.60
  6. Step 6: Final answer
    x = 57,008.70

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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.