Home / 140,140.13-193,398.71-79,716.29

Finding the Fourth Proportional to 140,140.13, 193,398.71 and 79,716.29

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Solution

The fourth proportional to 140,140.13, 193,398.71 and 79,716.29 is: 110,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,140.13 : 193,398.71 = 79,716.29 : x
  2. Step 2: Convert to fraction form
    140,140.13/193,398.71 = 79,716.29/x
  3. Step 3: Cross multiply
    140,140.13x = 193,398.71 × 79,716.29
  4. Step 4: Simplify right side
    140,140.13x = 15,417,026,286.41
  5. Step 5: Solve for x
    x = 15,417,026,286.41/140,140.13
  6. Step 6: Final answer
    x = 110,011.51

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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.