Home / 109,648.16-151,314-61,900.96

Finding the Fourth Proportional to 109,648.16, 151,314 and 61,900.96

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Solution

The fourth proportional to 109,648.16, 151,314 and 61,900.96 is: 85,423.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,648.16 : 151,314 = 61,900.96 : x
  2. Step 2: Convert to fraction form
    109,648.16/151,314 = 61,900.96/x
  3. Step 3: Cross multiply
    109,648.16x = 151,314 × 61,900.96
  4. Step 4: Simplify right side
    109,648.16x = 9,366,481,861.44
  5. Step 5: Solve for x
    x = 9,366,481,861.44/109,648.16
  6. Step 6: Final answer
    x = 85,423.06

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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.