Home / 212,229.32-318,270.13-79,036.90

Finding the Fourth Proportional to 212,229.32, 318,270.13 and 79,036.90

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Solution

The fourth proportional to 212,229.32, 318,270.13 and 79,036.90 is: 118,527.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,229.32 : 318,270.13 = 79,036.90 : x
  2. Step 2: Convert to fraction form
    212,229.32/318,270.13 = 79,036.90/x
  3. Step 3: Cross multiply
    212,229.32x = 318,270.13 × 79,036.90
  4. Step 4: Simplify right side
    212,229.32x = 25,155,083,444.53
  5. Step 5: Solve for x
    x = 25,155,083,444.53/212,229.32
  6. Step 6: Final answer
    x = 118,527.85

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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.