Home / 99,829.46-137,787.63-65,844.02

Finding the Fourth Proportional to 99,829.46, 137,787.63 and 65,844.02

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Solution

The fourth proportional to 99,829.46, 137,787.63 and 65,844.02 is: 90,879.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,829.46 : 137,787.63 = 65,844.02 : x
  2. Step 2: Convert to fraction form
    99,829.46/137,787.63 = 65,844.02/x
  3. Step 3: Cross multiply
    99,829.46x = 137,787.63 × 65,844.02
  4. Step 4: Simplify right side
    99,829.46x = 9,072,491,465.47
  5. Step 5: Solve for x
    x = 9,072,491,465.47/99,829.46
  6. Step 6: Final answer
    x = 90,879.90

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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.