Home / 107,049.20-147,743.62-61,718.30

Finding the Fourth Proportional to 107,049.20, 147,743.62 and 61,718.30

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Solution

The fourth proportional to 107,049.20, 147,743.62 and 61,718.30 is: 85,180.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,049.20 : 147,743.62 = 61,718.30 : x
  2. Step 2: Convert to fraction form
    107,049.20/147,743.62 = 61,718.30/x
  3. Step 3: Cross multiply
    107,049.20x = 147,743.62 × 61,718.30
  4. Step 4: Simplify right side
    107,049.20x = 9,118,484,723.27
  5. Step 5: Solve for x
    x = 9,118,484,723.27/107,049.20
  6. Step 6: Final answer
    x = 85,180.32

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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.