Home / 140,140.86-193,398.66-79,720.26

Finding the Fourth Proportional to 140,140.86, 193,398.66 and 79,720.26

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Solution

The fourth proportional to 140,140.86, 193,398.66 and 79,720.26 is: 110,016.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,140.86 : 193,398.66 = 79,720.26 : x
  2. Step 2: Convert to fraction form
    140,140.86/193,398.66 = 79,720.26/x
  3. Step 3: Cross multiply
    140,140.86x = 193,398.66 × 79,720.26
  4. Step 4: Simplify right side
    140,140.86x = 15,417,791,458.85
  5. Step 5: Solve for x
    x = 15,417,791,458.85/140,140.86
  6. Step 6: Final answer
    x = 110,016.39

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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.