Home / 108,000.20-162,000.30-98,158.70

Finding the Fourth Proportional to 108,000.20, 162,000.30 and 98,158.70

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Solution

The fourth proportional to 108,000.20, 162,000.30 and 98,158.70 is: 147,238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,000.20 : 162,000.30 = 98,158.70 : x
  2. Step 2: Convert to fraction form
    108,000.20/162,000.30 = 98,158.70/x
  3. Step 3: Cross multiply
    108,000.20x = 162,000.30 × 98,158.70
  4. Step 4: Simplify right side
    108,000.20x = 15,901,738,847.61
  5. Step 5: Solve for x
    x = 15,901,738,847.61/108,000.20
  6. Step 6: Final answer
    x = 147,238.05

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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.