Home / 119,829.68-165,363.84-66,115.12

Finding the Fourth Proportional to 119,829.68, 165,363.84 and 66,115.12

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Solution

The fourth proportional to 119,829.68, 165,363.84 and 66,115.12 is: 91,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,829.68 : 165,363.84 = 66,115.12 : x
  2. Step 2: Convert to fraction form
    119,829.68/165,363.84 = 66,115.12/x
  3. Step 3: Cross multiply
    119,829.68x = 165,363.84 × 66,115.12
  4. Step 4: Simplify right side
    119,829.68x = 10,933,050,125.26
  5. Step 5: Solve for x
    x = 10,933,050,125.26/119,829.68
  6. Step 6: Final answer
    x = 91,238.25

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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.