Home / 108,623.20-162,934.80-99,000.40

Finding the Fourth Proportional to 108,623.20, 162,934.80 and 99,000.40

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Solution

The fourth proportional to 108,623.20, 162,934.80 and 99,000.40 is: 148,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,623.20 : 162,934.80 = 99,000.40 : x
  2. Step 2: Convert to fraction form
    108,623.20/162,934.80 = 99,000.40/x
  3. Step 3: Cross multiply
    108,623.20x = 162,934.80 × 99,000.40
  4. Step 4: Simplify right side
    108,623.20x = 16,130,610,373.92
  5. Step 5: Solve for x
    x = 16,130,610,373.92/108,623.20
  6. Step 6: Final answer
    x = 148,500.60

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Similar ratio
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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.