Home / 155,845.61-215,067.92-84,225.46

Finding the Fourth Proportional to 155,845.61, 215,067.92 and 84,225.46

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Solution

The fourth proportional to 155,845.61, 215,067.92 and 84,225.46 is: 116,231.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,845.61 : 215,067.92 = 84,225.46 : x
  2. Step 2: Convert to fraction form
    155,845.61/215,067.92 = 84,225.46/x
  3. Step 3: Cross multiply
    155,845.61x = 215,067.92 × 84,225.46
  4. Step 4: Simplify right side
    155,845.61x = 18,114,194,493.24
  5. Step 5: Solve for x
    x = 18,114,194,493.24/155,845.61
  6. Step 6: Final answer
    x = 116,231.66

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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.