Home / 119,565.20-165,000.48-71,819.36

Finding the Fourth Proportional to 119,565.20, 165,000.48 and 71,819.36

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Solution

The fourth proportional to 119,565.20, 165,000.48 and 71,819.36 is: 99,111.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,565.20 : 165,000.48 = 71,819.36 : x
  2. Step 2: Convert to fraction form
    119,565.20/165,000.48 = 71,819.36/x
  3. Step 3: Cross multiply
    119,565.20x = 165,000.48 × 71,819.36
  4. Step 4: Simplify right side
    119,565.20x = 11,850,228,873.29
  5. Step 5: Solve for x
    x = 11,850,228,873.29/119,565.20
  6. Step 6: Final answer
    x = 99,111.02

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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.