Home / 108,566.20-162,849.30-90,134.20

Finding the Fourth Proportional to 108,566.20, 162,849.30 and 90,134.20

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Solution

The fourth proportional to 108,566.20, 162,849.30 and 90,134.20 is: 135,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,566.20 : 162,849.30 = 90,134.20 : x
  2. Step 2: Convert to fraction form
    108,566.20/162,849.30 = 90,134.20/x
  3. Step 3: Cross multiply
    108,566.20x = 162,849.30 × 90,134.20
  4. Step 4: Simplify right side
    108,566.20x = 14,678,291,376.06
  5. Step 5: Solve for x
    x = 14,678,291,376.06/108,566.20
  6. Step 6: Final answer
    x = 135,201.30

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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.