Home / 212,308.20-318,199.86-107,069.76

Finding the Fourth Proportional to 212,308.20, 318,199.86 and 107,069.76

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Solution

The fourth proportional to 212,308.20, 318,199.86 and 107,069.76 is: 160,472.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,308.20 : 318,199.86 = 107,069.76 : x
  2. Step 2: Convert to fraction form
    212,308.20/318,199.86 = 107,069.76/x
  3. Step 3: Cross multiply
    212,308.20x = 318,199.86 × 107,069.76
  4. Step 4: Simplify right side
    212,308.20x = 34,069,582,642.23
  5. Step 5: Solve for x
    x = 34,069,582,642.23/212,308.20
  6. Step 6: Final answer
    x = 160,472.29

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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.