Home / 71,630.94-107,148.06-66,316.53

Finding the Fourth Proportional to 71,630.94, 107,148.06 and 66,316.53

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Solution

The fourth proportional to 71,630.94, 107,148.06 and 66,316.53 is: 99,198.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,630.94 : 107,148.06 = 66,316.53 : x
  2. Step 2: Convert to fraction form
    71,630.94/107,148.06 = 66,316.53/x
  3. Step 3: Cross multiply
    71,630.94x = 107,148.06 × 66,316.53
  4. Step 4: Simplify right side
    71,630.94x = 7,105,687,535.43
  5. Step 5: Solve for x
    x = 7,105,687,535.43/71,630.94
  6. Step 6: Final answer
    x = 99,198.58

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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.