Home / 142,024.72-195,996.92-78,368.44

Finding the Fourth Proportional to 142,024.72, 195,996.92 and 78,368.44

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Solution

The fourth proportional to 142,024.72, 195,996.92 and 78,368.44 is: 108,150.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,024.72 : 195,996.92 = 78,368.44 : x
  2. Step 2: Convert to fraction form
    142,024.72/195,996.92 = 78,368.44/x
  3. Step 3: Cross multiply
    142,024.72x = 195,996.92 × 78,368.44
  4. Step 4: Simplify right side
    142,024.72x = 15,359,972,865.20
  5. Step 5: Solve for x
    x = 15,359,972,865.20/142,024.72
  6. Step 6: Final answer
    x = 108,150.00

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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.