Home / 212,166.52-318,226-54,398.68

Finding the Fourth Proportional to 212,166.52, 318,226 and 54,398.68

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Solution

The fourth proportional to 212,166.52, 318,226 and 54,398.68 is: 81,591.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,166.52 : 318,226 = 54,398.68 : x
  2. Step 2: Convert to fraction form
    212,166.52/318,226 = 54,398.68/x
  3. Step 3: Cross multiply
    212,166.52x = 318,226 × 54,398.68
  4. Step 4: Simplify right side
    212,166.52x = 17,311,074,341.68
  5. Step 5: Solve for x
    x = 17,311,074,341.68/212,166.52
  6. Step 6: Final answer
    x = 81,591.92

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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.