Home / 125,899.52-188,824.08-80,787.32

Finding the Fourth Proportional to 125,899.52, 188,824.08 and 80,787.32

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Solution

The fourth proportional to 125,899.52, 188,824.08 and 80,787.32 is: 121,164.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,899.52 : 188,824.08 = 80,787.32 : x
  2. Step 2: Convert to fraction form
    125,899.52/188,824.08 = 80,787.32/x
  3. Step 3: Cross multiply
    125,899.52x = 188,824.08 × 80,787.32
  4. Step 4: Simplify right side
    125,899.52x = 15,254,591,374.67
  5. Step 5: Solve for x
    x = 15,254,591,374.67/125,899.52
  6. Step 6: Final answer
    x = 121,164.81

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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.