Home / 125,880.12-173,694.24-72,155.25

Finding the Fourth Proportional to 125,880.12, 173,694.24 and 72,155.25

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Solution

The fourth proportional to 125,880.12, 173,694.24 and 72,155.25 is: 99,562.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,880.12 : 173,694.24 = 72,155.25 : x
  2. Step 2: Convert to fraction form
    125,880.12/173,694.24 = 72,155.25/x
  3. Step 3: Cross multiply
    125,880.12x = 173,694.24 × 72,155.25
  4. Step 4: Simplify right side
    125,880.12x = 12,532,951,310.76
  5. Step 5: Solve for x
    x = 12,532,951,310.76/125,880.12
  6. Step 6: Final answer
    x = 99,562.59

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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.