Home / 107,171.15-147,908.37-61,861.29

Finding the Fourth Proportional to 107,171.15, 147,908.37 and 61,861.29

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Solution

The fourth proportional to 107,171.15, 147,908.37 and 61,861.29 is: 85,375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,171.15 : 147,908.37 = 61,861.29 : x
  2. Step 2: Convert to fraction form
    107,171.15/147,908.37 = 61,861.29/x
  3. Step 3: Cross multiply
    107,171.15x = 147,908.37 × 61,861.29
  4. Step 4: Simplify right side
    107,171.15x = 9,149,803,060.34
  5. Step 5: Solve for x
    x = 9,149,803,060.34/107,171.15
  6. Step 6: Final answer
    x = 85,375.62

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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.