Home / 212,937.50-319,460.26-79,818.14

Finding the Fourth Proportional to 212,937.50, 319,460.26 and 79,818.14

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Solution

The fourth proportional to 212,937.50, 319,460.26 and 79,818.14 is: 119,747.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,937.50 : 319,460.26 = 79,818.14 : x
  2. Step 2: Convert to fraction form
    212,937.50/319,460.26 = 79,818.14/x
  3. Step 3: Cross multiply
    212,937.50x = 319,460.26 × 79,818.14
  4. Step 4: Simplify right side
    212,937.50x = 25,498,723,757.12
  5. Step 5: Solve for x
    x = 25,498,723,757.12/212,937.50
  6. Step 6: Final answer
    x = 119,747.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.