Home / 149,119.20-223,678.80-131,623.20

Finding the Fourth Proportional to 149,119.20, 223,678.80 and 131,623.20

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Solution

The fourth proportional to 149,119.20, 223,678.80 and 131,623.20 is: 197,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,119.20 : 223,678.80 = 131,623.20 : x
  2. Step 2: Convert to fraction form
    149,119.20/223,678.80 = 131,623.20/x
  3. Step 3: Cross multiply
    149,119.20x = 223,678.80 × 131,623.20
  4. Step 4: Simplify right side
    149,119.20x = 29,441,319,428.16
  5. Step 5: Solve for x
    x = 29,441,319,428.16/149,119.20
  6. Step 6: Final answer
    x = 197,434.80

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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.