Home / 99,382.16-137,145.48-54,670.16

Finding the Fourth Proportional to 99,382.16, 137,145.48 and 54,670.16

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Solution

The fourth proportional to 99,382.16, 137,145.48 and 54,670.16 is: 75,443.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,382.16 : 137,145.48 = 54,670.16 : x
  2. Step 2: Convert to fraction form
    99,382.16/137,145.48 = 54,670.16/x
  3. Step 3: Cross multiply
    99,382.16x = 137,145.48 × 54,670.16
  4. Step 4: Simplify right side
    99,382.16x = 7,497,765,334.88
  5. Step 5: Solve for x
    x = 7,497,765,334.88/99,382.16
  6. Step 6: Final answer
    x = 75,443.78

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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.