Home / 140,045.40-193,255.11-79,607.70

Finding the Fourth Proportional to 140,045.40, 193,255.11 and 79,607.70

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Solution

The fourth proportional to 140,045.40, 193,255.11 and 79,607.70 is: 109,854.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,045.40 : 193,255.11 = 79,607.70 : x
  2. Step 2: Convert to fraction form
    140,045.40/193,255.11 = 79,607.70/x
  3. Step 3: Cross multiply
    140,045.40x = 193,255.11 × 79,607.70
  4. Step 4: Simplify right side
    140,045.40x = 15,384,594,820.35
  5. Step 5: Solve for x
    x = 15,384,594,820.35/140,045.40
  6. Step 6: Final answer
    x = 109,854.34

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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.