Home / 140,020.79-193,233.80-79,601.63

Finding the Fourth Proportional to 140,020.79, 193,233.80 and 79,601.63

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Solution

The fourth proportional to 140,020.79, 193,233.80 and 79,601.63 is: 109,853.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,020.79 : 193,233.80 = 79,601.63 : x
  2. Step 2: Convert to fraction form
    140,020.79/193,233.80 = 79,601.63/x
  3. Step 3: Cross multiply
    140,020.79x = 193,233.80 × 79,601.63
  4. Step 4: Simplify right side
    140,020.79x = 15,381,725,451.09
  5. Step 5: Solve for x
    x = 15,381,725,451.09/140,020.79
  6. Step 6: Final answer
    x = 109,853.15

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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.