Home / 143,911.38-198,598.56-80,253.20

Finding the Fourth Proportional to 143,911.38, 198,598.56 and 80,253.20

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Solution

The fourth proportional to 143,911.38, 198,598.56 and 80,253.20 is: 110,749.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,911.38 : 198,598.56 = 80,253.20 : x
  2. Step 2: Convert to fraction form
    143,911.38/198,598.56 = 80,253.20/x
  3. Step 3: Cross multiply
    143,911.38x = 198,598.56 × 80,253.20
  4. Step 4: Simplify right side
    143,911.38x = 15,938,169,955.39
  5. Step 5: Solve for x
    x = 15,938,169,955.39/143,911.38
  6. Step 6: Final answer
    x = 110,749.89

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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.