Home / 108,423.20-162,634.80-71,098.40

Finding the Fourth Proportional to 108,423.20, 162,634.80 and 71,098.40

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Solution

The fourth proportional to 108,423.20, 162,634.80 and 71,098.40 is: 106,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,423.20 : 162,634.80 = 71,098.40 : x
  2. Step 2: Convert to fraction form
    108,423.20/162,634.80 = 71,098.40/x
  3. Step 3: Cross multiply
    108,423.20x = 162,634.80 × 71,098.40
  4. Step 4: Simplify right side
    108,423.20x = 11,563,074,064.32
  5. Step 5: Solve for x
    x = 11,563,074,064.32/108,423.20
  6. Step 6: Final answer
    x = 106,647.60

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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.