Home / 140,790.28-194,292.74-77,134.12

Finding the Fourth Proportional to 140,790.28, 194,292.74 and 77,134.12

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Solution

The fourth proportional to 140,790.28, 194,292.74 and 77,134.12 is: 106,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,790.28 : 194,292.74 = 77,134.12 : x
  2. Step 2: Convert to fraction form
    140,790.28/194,292.74 = 77,134.12/x
  3. Step 3: Cross multiply
    140,790.28x = 194,292.74 × 77,134.12
  4. Step 4: Simplify right side
    140,790.28x = 14,986,599,522.29
  5. Step 5: Solve for x
    x = 14,986,599,522.29/140,790.28
  6. Step 6: Final answer
    x = 106,446.27

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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.