Home / 212,847.90-318,834.45-107,726.10

Finding the Fourth Proportional to 212,847.90, 318,834.45 and 107,726.10

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Solution

The fourth proportional to 212,847.90, 318,834.45 and 107,726.10 is: 161,367.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,847.90 : 318,834.45 = 107,726.10 : x
  2. Step 2: Convert to fraction form
    212,847.90/318,834.45 = 107,726.10/x
  3. Step 3: Cross multiply
    212,847.90x = 318,834.45 × 107,726.10
  4. Step 4: Simplify right side
    212,847.90x = 34,346,791,844.15
  5. Step 5: Solve for x
    x = 34,346,791,844.15/212,847.90
  6. Step 6: Final answer
    x = 161,367.77

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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.