Home / 140,685.53-194,145.51-80,256.06

Finding the Fourth Proportional to 140,685.53, 194,145.51 and 80,256.06

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Solution

The fourth proportional to 140,685.53, 194,145.51 and 80,256.06 is: 110,753.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,685.53 : 194,145.51 = 80,256.06 : x
  2. Step 2: Convert to fraction form
    140,685.53/194,145.51 = 80,256.06/x
  3. Step 3: Cross multiply
    140,685.53x = 194,145.51 × 80,256.06
  4. Step 4: Simplify right side
    140,685.53x = 15,581,353,699.29
  5. Step 5: Solve for x
    x = 15,581,353,699.29/140,685.53
  6. Step 6: Final answer
    x = 110,753.07

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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.