Home / 108,002.20-162,003.30-74,322.40

Finding the Fourth Proportional to 108,002.20, 162,003.30 and 74,322.40

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Solution

The fourth proportional to 108,002.20, 162,003.30 and 74,322.40 is: 111,483.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,002.20 : 162,003.30 = 74,322.40 : x
  2. Step 2: Convert to fraction form
    108,002.20/162,003.30 = 74,322.40/x
  3. Step 3: Cross multiply
    108,002.20x = 162,003.30 × 74,322.40
  4. Step 4: Simplify right side
    108,002.20x = 12,040,474,063.92
  5. Step 5: Solve for x
    x = 12,040,474,063.92/108,002.20
  6. Step 6: Final answer
    x = 111,483.60

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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.