Home / 99,459.28-137,270.46-63,647.56

Finding the Fourth Proportional to 99,459.28, 137,270.46 and 63,647.56

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Solution

The fourth proportional to 99,459.28, 137,270.46 and 63,647.56 is: 87,844.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,459.28 : 137,270.46 = 63,647.56 : x
  2. Step 2: Convert to fraction form
    99,459.28/137,270.46 = 63,647.56/x
  3. Step 3: Cross multiply
    99,459.28x = 137,270.46 × 63,647.56
  4. Step 4: Simplify right side
    99,459.28x = 8,736,929,839.08
  5. Step 5: Solve for x
    x = 8,736,929,839.08/99,459.28
  6. Step 6: Final answer
    x = 87,844.29

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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.