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Finding the Fourth Proportional to 108,229.60, 162,344.40 and 70,904.80

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Solution

The fourth proportional to 108,229.60, 162,344.40 and 70,904.80 is: 106,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,229.60 : 162,344.40 = 70,904.80 : x
  2. Step 2: Convert to fraction form
    108,229.60/162,344.40 = 70,904.80/x
  3. Step 3: Cross multiply
    108,229.60x = 162,344.40 × 70,904.80
  4. Step 4: Simplify right side
    108,229.60x = 11,510,997,213.12
  5. Step 5: Solve for x
    x = 11,510,997,213.12/108,229.60
  6. Step 6: Final answer
    x = 106,357.20

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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.