Home / 101,637.24-140,329.38-77,722.24

Finding the Fourth Proportional to 101,637.24, 140,329.38 and 77,722.24

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Solution

The fourth proportional to 101,637.24, 140,329.38 and 77,722.24 is: 107,310.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,637.24 : 140,329.38 = 77,722.24 : x
  2. Step 2: Convert to fraction form
    101,637.24/140,329.38 = 77,722.24/x
  3. Step 3: Cross multiply
    101,637.24x = 140,329.38 × 77,722.24
  4. Step 4: Simplify right side
    101,637.24x = 10,906,713,751.41
  5. Step 5: Solve for x
    x = 10,906,713,751.41/101,637.24
  6. Step 6: Final answer
    x = 107,310.21

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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.