Home / 140,686.38-194,147.28-77,024.16

Finding the Fourth Proportional to 140,686.38, 194,147.28 and 77,024.16

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Solution

The fourth proportional to 140,686.38, 194,147.28 and 77,024.16 is: 106,293.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,686.38 : 194,147.28 = 77,024.16 : x
  2. Step 2: Convert to fraction form
    140,686.38/194,147.28 = 77,024.16/x
  3. Step 3: Cross multiply
    140,686.38x = 194,147.28 × 77,024.16
  4. Step 4: Simplify right side
    140,686.38x = 14,954,031,158.28
  5. Step 5: Solve for x
    x = 14,954,031,158.28/140,686.38
  6. Step 6: Final answer
    x = 106,293.38

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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.