Home / 101,868.32-140,571.22-56,542.74

Finding the Fourth Proportional to 101,868.32, 140,571.22 and 56,542.74

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Solution

The fourth proportional to 101,868.32, 140,571.22 and 56,542.74 is: 78,025.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,868.32 : 140,571.22 = 56,542.74 : x
  2. Step 2: Convert to fraction form
    101,868.32/140,571.22 = 56,542.74/x
  3. Step 3: Cross multiply
    101,868.32x = 140,571.22 × 56,542.74
  4. Step 4: Simplify right side
    101,868.32x = 7,948,281,943.94
  5. Step 5: Solve for x
    x = 7,948,281,943.94/101,868.32
  6. Step 6: Final answer
    x = 78,025.06

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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.