Home / 142,744.34-196,987.02-79,086.26

Finding the Fourth Proportional to 142,744.34, 196,987.02 and 79,086.26

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Solution

The fourth proportional to 142,744.34, 196,987.02 and 79,086.26 is: 109,138.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,744.34 : 196,987.02 = 79,086.26 : x
  2. Step 2: Convert to fraction form
    142,744.34/196,987.02 = 79,086.26/x
  3. Step 3: Cross multiply
    142,744.34x = 196,987.02 × 79,086.26
  4. Step 4: Simplify right side
    142,744.34x = 15,578,966,680.35
  5. Step 5: Solve for x
    x = 15,578,966,680.35/142,744.34
  6. Step 6: Final answer
    x = 109,138.95

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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.