Home / 140,685.36-194,164.29-80,242.15

Finding the Fourth Proportional to 140,685.36, 194,164.29 and 80,242.15

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Solution

The fourth proportional to 140,685.36, 194,164.29 and 80,242.15 is: 110,744.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,685.36 : 194,164.29 = 80,242.15 : x
  2. Step 2: Convert to fraction form
    140,685.36/194,164.29 = 80,242.15/x
  3. Step 3: Cross multiply
    140,685.36x = 194,164.29 × 80,242.15
  4. Step 4: Simplify right side
    140,685.36x = 15,580,159,396.81
  5. Step 5: Solve for x
    x = 15,580,159,396.81/140,685.36
  6. Step 6: Final answer
    x = 110,744.71

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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.