Home / 81,295.02-122,551.85-75,876.12

Finding the Fourth Proportional to 81,295.02, 122,551.85 and 75,876.12

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Solution

The fourth proportional to 81,295.02, 122,551.85 and 75,876.12 is: 114,382.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,295.02 : 122,551.85 = 75,876.12 : x
  2. Step 2: Convert to fraction form
    81,295.02/122,551.85 = 75,876.12/x
  3. Step 3: Cross multiply
    81,295.02x = 122,551.85 × 75,876.12
  4. Step 4: Simplify right side
    81,295.02x = 9,298,758,876.82
  5. Step 5: Solve for x
    x = 9,298,758,876.82/81,295.02
  6. Step 6: Final answer
    x = 114,382.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.