Home / 125,337.60-172,964.70-68,749.20

Finding the Fourth Proportional to 125,337.60, 172,964.70 and 68,749.20

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Solution

The fourth proportional to 125,337.60, 172,964.70 and 68,749.20 is: 94,873.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,337.60 : 172,964.70 = 68,749.20 : x
  2. Step 2: Convert to fraction form
    125,337.60/172,964.70 = 68,749.20/x
  3. Step 3: Cross multiply
    125,337.60x = 172,964.70 × 68,749.20
  4. Step 4: Simplify right side
    125,337.60x = 11,891,184,753.24
  5. Step 5: Solve for x
    x = 11,891,184,753.24/125,337.60
  6. Step 6: Final answer
    x = 94,873.24

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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.