Home / 125,008.12-172,504.56-68,408.56

Finding the Fourth Proportional to 125,008.12, 172,504.56 and 68,408.56

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Solution

The fourth proportional to 125,008.12, 172,504.56 and 68,408.56 is: 94,400.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,008.12 : 172,504.56 = 68,408.56 : x
  2. Step 2: Convert to fraction form
    125,008.12/172,504.56 = 68,408.56/x
  3. Step 3: Cross multiply
    125,008.12x = 172,504.56 × 68,408.56
  4. Step 4: Simplify right side
    125,008.12x = 11,800,788,543.03
  5. Step 5: Solve for x
    x = 11,800,788,543.03/125,008.12
  6. Step 6: Final answer
    x = 94,400.18

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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.