Home / 125,004.12-172,499.04-68,404.56

Finding the Fourth Proportional to 125,004.12, 172,499.04 and 68,404.56

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Solution

The fourth proportional to 125,004.12, 172,499.04 and 68,404.56 is: 94,394.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,004.12 : 172,499.04 = 68,404.56 : x
  2. Step 2: Convert to fraction form
    125,004.12/172,499.04 = 68,404.56/x
  3. Step 3: Cross multiply
    125,004.12x = 172,499.04 × 68,404.56
  4. Step 4: Simplify right side
    125,004.12x = 11,799,720,931.62
  5. Step 5: Solve for x
    x = 11,799,720,931.62/125,004.12
  6. Step 6: Final answer
    x = 94,394.66

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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.