Home / 125,028.18-172,539.18-68,443.20

Finding the Fourth Proportional to 125,028.18, 172,539.18 and 68,443.20

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Solution

The fourth proportional to 125,028.18, 172,539.18 and 68,443.20 is: 94,451.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,028.18 : 172,539.18 = 68,443.20 : x
  2. Step 2: Convert to fraction form
    125,028.18/172,539.18 = 68,443.20/x
  3. Step 3: Cross multiply
    125,028.18x = 172,539.18 × 68,443.20
  4. Step 4: Simplify right side
    125,028.18x = 11,809,133,604.58
  5. Step 5: Solve for x
    x = 11,809,133,604.58/125,028.18
  6. Step 6: Final answer
    x = 94,451.78

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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.