Home / 109,977.78-151,781.67-62,234.20

Finding the Fourth Proportional to 109,977.78, 151,781.67 and 62,234.20

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Solution

The fourth proportional to 109,977.78, 151,781.67 and 62,234.20 is: 85,890.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,977.78 : 151,781.67 = 62,234.20 : x
  2. Step 2: Convert to fraction form
    109,977.78/151,781.67 = 62,234.20/x
  3. Step 3: Cross multiply
    109,977.78x = 151,781.67 × 62,234.20
  4. Step 4: Simplify right side
    109,977.78x = 9,446,010,744.99
  5. Step 5: Solve for x
    x = 9,446,010,744.99/109,977.78
  6. Step 6: Final answer
    x = 85,890.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.