Home / 108,112.54-149,188.88-62,787.38

Finding the Fourth Proportional to 108,112.54, 149,188.88 and 62,787.38

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Solution

The fourth proportional to 108,112.54, 149,188.88 and 62,787.38 is: 86,642.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,112.54 : 149,188.88 = 62,787.38 : x
  2. Step 2: Convert to fraction form
    108,112.54/149,188.88 = 62,787.38/x
  3. Step 3: Cross multiply
    108,112.54x = 149,188.88 × 62,787.38
  4. Step 4: Simplify right side
    108,112.54x = 9,367,178,900.33
  5. Step 5: Solve for x
    x = 9,367,178,900.33/108,112.54
  6. Step 6: Final answer
    x = 86,642.85

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1.5x scale

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.