Home / 99,682.36-137,531.24-56,658.62

Finding the Fourth Proportional to 99,682.36, 137,531.24 and 56,658.62

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Solution

The fourth proportional to 99,682.36, 137,531.24 and 56,658.62 is: 78,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,682.36 : 137,531.24 = 56,658.62 : x
  2. Step 2: Convert to fraction form
    99,682.36/137,531.24 = 56,658.62/x
  3. Step 3: Cross multiply
    99,682.36x = 137,531.24 × 56,658.62
  4. Step 4: Simplify right side
    99,682.36x = 7,792,330,265.29
  5. Step 5: Solve for x
    x = 7,792,330,265.29/99,682.36
  6. Step 6: Final answer
    x = 78,171.61

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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.