Home / 215,565.92-297,490.14-120,072.65

Finding the Fourth Proportional to 215,565.92, 297,490.14 and 120,072.65

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Solution

The fourth proportional to 215,565.92, 297,490.14 and 120,072.65 is: 165,705.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,565.92 : 297,490.14 = 120,072.65 : x
  2. Step 2: Convert to fraction form
    215,565.92/297,490.14 = 120,072.65/x
  3. Step 3: Cross multiply
    215,565.92x = 297,490.14 × 120,072.65
  4. Step 4: Simplify right side
    215,565.92x = 35,720,430,202.40
  5. Step 5: Solve for x
    x = 35,720,430,202.40/215,565.92
  6. Step 6: Final answer
    x = 165,705.37

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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.