Home / 99,934.31-137,917.19-56,915.62

Finding the Fourth Proportional to 99,934.31, 137,917.19 and 56,915.62

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Solution

The fourth proportional to 99,934.31, 137,917.19 and 56,915.62 is: 78,548.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,934.31 : 137,917.19 = 56,915.62 : x
  2. Step 2: Convert to fraction form
    99,934.31/137,917.19 = 56,915.62/x
  3. Step 3: Cross multiply
    99,934.31x = 137,917.19 × 56,915.62
  4. Step 4: Simplify right side
    99,934.31x = 7,849,642,175.00
  5. Step 5: Solve for x
    x = 7,849,642,175.00/99,934.31
  6. Step 6: Final answer
    x = 78,548.02

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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.