Home / 155,890.86-215,078.40-95,398.44

Finding the Fourth Proportional to 155,890.86, 215,078.40 and 95,398.44

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Solution

The fourth proportional to 155,890.86, 215,078.40 and 95,398.44 is: 131,618.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,890.86 : 215,078.40 = 95,398.44 : x
  2. Step 2: Convert to fraction form
    155,890.86/215,078.40 = 95,398.44/x
  3. Step 3: Cross multiply
    155,890.86x = 215,078.40 × 95,398.44
  4. Step 4: Simplify right side
    155,890.86x = 20,518,143,837.70
  5. Step 5: Solve for x
    x = 20,518,143,837.70/155,890.86
  6. Step 6: Final answer
    x = 131,618.65

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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.