Home / 82,840.32-124,275.87-75,328.38

Finding the Fourth Proportional to 82,840.32, 124,275.87 and 75,328.38

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Solution

The fourth proportional to 82,840.32, 124,275.87 and 75,328.38 is: 113,006.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,840.32 : 124,275.87 = 75,328.38 : x
  2. Step 2: Convert to fraction form
    82,840.32/124,275.87 = 75,328.38/x
  3. Step 3: Cross multiply
    82,840.32x = 124,275.87 × 75,328.38
  4. Step 4: Simplify right side
    82,840.32x = 9,361,499,960.19
  5. Step 5: Solve for x
    x = 9,361,499,960.19/82,840.32
  6. Step 6: Final answer
    x = 113,006.56

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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.