Home / 98,155.11-147,218.49-31,586.61

Finding the Fourth Proportional to 98,155.11, 147,218.49 and 31,586.61

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Solution

The fourth proportional to 98,155.11, 147,218.49 and 31,586.61 is: 47,375.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,155.11 : 147,218.49 = 31,586.61 : x
  2. Step 2: Convert to fraction form
    98,155.11/147,218.49 = 31,586.61/x
  3. Step 3: Cross multiply
    98,155.11x = 147,218.49 × 31,586.61
  4. Step 4: Simplify right side
    98,155.11x = 4,650,133,028.42
  5. Step 5: Solve for x
    x = 4,650,133,028.42/98,155.11
  6. Step 6: Final answer
    x = 47,375.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.