Home / 213,278.10-319,671.08-80,073.39

Finding the Fourth Proportional to 213,278.10, 319,671.08 and 80,073.39

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Solution

The fourth proportional to 213,278.10, 319,671.08 and 80,073.39 is: 120,017.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,278.10 : 319,671.08 = 80,073.39 : x
  2. Step 2: Convert to fraction form
    213,278.10/319,671.08 = 80,073.39/x
  3. Step 3: Cross multiply
    213,278.10x = 319,671.08 × 80,073.39
  4. Step 4: Simplify right side
    213,278.10x = 25,597,146,660.19
  5. Step 5: Solve for x
    x = 25,597,146,660.19/213,278.10
  6. Step 6: Final answer
    x = 120,017.70

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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.