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Finding the Fourth Proportional to 159,230.12, 219,733.04 and 87,610.20

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Solution

The fourth proportional to 159,230.12, 219,733.04 and 87,610.20 is: 120,899.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,230.12 : 219,733.04 = 87,610.20 : x
  2. Step 2: Convert to fraction form
    159,230.12/219,733.04 = 87,610.20/x
  3. Step 3: Cross multiply
    159,230.12x = 219,733.04 × 87,610.20
  4. Step 4: Simplify right side
    159,230.12x = 19,250,855,581.01
  5. Step 5: Solve for x
    x = 19,250,855,581.01/159,230.12
  6. Step 6: Final answer
    x = 120,899.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.