Home / 120,102.91-165,758.48-69,114.59

Finding the Fourth Proportional to 120,102.91, 165,758.48 and 69,114.59

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Solution

The fourth proportional to 120,102.91, 165,758.48 and 69,114.59 is: 95,387.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,102.91 : 165,758.48 = 69,114.59 : x
  2. Step 2: Convert to fraction form
    120,102.91/165,758.48 = 69,114.59/x
  3. Step 3: Cross multiply
    120,102.91x = 165,758.48 × 69,114.59
  4. Step 4: Simplify right side
    120,102.91x = 11,456,329,038.65
  5. Step 5: Solve for x
    x = 11,456,329,038.65/120,102.91
  6. Step 6: Final answer
    x = 95,387.61

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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.