Home / 140,065.79-193,288.50-79,635.13

Finding the Fourth Proportional to 140,065.79, 193,288.50 and 79,635.13

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Solution

The fourth proportional to 140,065.79, 193,288.50 and 79,635.13 is: 109,895.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,065.79 : 193,288.50 = 79,635.13 : x
  2. Step 2: Convert to fraction form
    140,065.79/193,288.50 = 79,635.13/x
  3. Step 3: Cross multiply
    140,065.79x = 193,288.50 × 79,635.13
  4. Step 4: Simplify right side
    140,065.79x = 15,392,554,341.78
  5. Step 5: Solve for x
    x = 15,392,554,341.78/140,065.79
  6. Step 6: Final answer
    x = 109,895.18

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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.