Home / 101,732.25-140,392.20-56,412.15

Finding the Fourth Proportional to 101,732.25, 140,392.20 and 56,412.15

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Solution

The fourth proportional to 101,732.25, 140,392.20 and 56,412.15 is: 77,849.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,732.25 : 140,392.20 = 56,412.15 : x
  2. Step 2: Convert to fraction form
    101,732.25/140,392.20 = 56,412.15/x
  3. Step 3: Cross multiply
    101,732.25x = 140,392.20 × 56,412.15
  4. Step 4: Simplify right side
    101,732.25x = 7,919,825,845.23
  5. Step 5: Solve for x
    x = 7,919,825,845.23/101,732.25
  6. Step 6: Final answer
    x = 77,849.71

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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.