Home / 144,156.72-198,927.68-83,723.20

Finding the Fourth Proportional to 144,156.72, 198,927.68 and 83,723.20

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Solution

The fourth proportional to 144,156.72, 198,927.68 and 83,723.20 is: 115,533.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,156.72 : 198,927.68 = 83,723.20 : x
  2. Step 2: Convert to fraction form
    144,156.72/198,927.68 = 83,723.20/x
  3. Step 3: Cross multiply
    144,156.72x = 198,927.68 × 83,723.20
  4. Step 4: Simplify right side
    144,156.72x = 16,654,861,938.18
  5. Step 5: Solve for x
    x = 16,654,861,938.18/144,156.72
  6. Step 6: Final answer
    x = 115,533.03

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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.