Home / 99,515.46-137,186.25-75,600.62

Finding the Fourth Proportional to 99,515.46, 137,186.25 and 75,600.62

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Solution

The fourth proportional to 99,515.46, 137,186.25 and 75,600.62 is: 104,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,515.46 : 137,186.25 = 75,600.62 : x
  2. Step 2: Convert to fraction form
    99,515.46/137,186.25 = 75,600.62/x
  3. Step 3: Cross multiply
    99,515.46x = 137,186.25 × 75,600.62
  4. Step 4: Simplify right side
    99,515.46x = 10,371,365,555.48
  5. Step 5: Solve for x
    x = 10,371,365,555.48/99,515.46
  6. Step 6: Final answer
    x = 104,218.64

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1.5x scale

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.