Home / 137,022.16-205,393.18-77,732.60

Finding the Fourth Proportional to 137,022.16, 205,393.18 and 77,732.60

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Solution

The fourth proportional to 137,022.16, 205,393.18 and 77,732.60 is: 116,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,022.16 : 205,393.18 = 77,732.60 : x
  2. Step 2: Convert to fraction form
    137,022.16/205,393.18 = 77,732.60/x
  3. Step 3: Cross multiply
    137,022.16x = 205,393.18 × 77,732.60
  4. Step 4: Simplify right side
    137,022.16x = 15,965,745,903.67
  5. Step 5: Solve for x
    x = 15,965,745,903.67/137,022.16
  6. Step 6: Final answer
    x = 116,519.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.