Home / 212,793.47-319,177.91-77,948.52

Finding the Fourth Proportional to 212,793.47, 319,177.91 and 77,948.52

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Solution

The fourth proportional to 212,793.47, 319,177.91 and 77,948.52 is: 116,918.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,793.47 : 319,177.91 = 77,948.52 : x
  2. Step 2: Convert to fraction form
    212,793.47/319,177.91 = 77,948.52/x
  3. Step 3: Cross multiply
    212,793.47x = 319,177.91 × 77,948.52
  4. Step 4: Simplify right side
    212,793.47x = 24,879,445,311.45
  5. Step 5: Solve for x
    x = 24,879,445,311.45/212,793.47
  6. Step 6: Final answer
    x = 116,918.28

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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.