Home / 140,712.04-194,164.59-80,279.20

Finding the Fourth Proportional to 140,712.04, 194,164.59 and 80,279.20

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Solution

The fourth proportional to 140,712.04, 194,164.59 and 80,279.20 is: 110,775.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,712.04 : 194,164.59 = 80,279.20 : x
  2. Step 2: Convert to fraction form
    140,712.04/194,164.59 = 80,279.20/x
  3. Step 3: Cross multiply
    140,712.04x = 194,164.59 × 80,279.20
  4. Step 4: Simplify right side
    140,712.04x = 15,587,377,953.53
  5. Step 5: Solve for x
    x = 15,587,377,953.53/140,712.04
  6. Step 6: Final answer
    x = 110,775.01

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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.