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Finding the Fourth Proportional to 108,335.60, 162,503.40 and 38,205.80

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Solution

The fourth proportional to 108,335.60, 162,503.40 and 38,205.80 is: 57,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,335.60 : 162,503.40 = 38,205.80 : x
  2. Step 2: Convert to fraction form
    108,335.60/162,503.40 = 38,205.80/x
  3. Step 3: Cross multiply
    108,335.60x = 162,503.40 × 38,205.80
  4. Step 4: Simplify right side
    108,335.60x = 6,208,572,399.72
  5. Step 5: Solve for x
    x = 6,208,572,399.72/108,335.60
  6. Step 6: Final answer
    x = 57,308.70

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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.