Home / 101,870.20-140,580.30-56,546.92

Finding the Fourth Proportional to 101,870.20, 140,580.30 and 56,546.92

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Solution

The fourth proportional to 101,870.20, 140,580.30 and 56,546.92 is: 78,034.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,870.20 : 140,580.30 = 56,546.92 : x
  2. Step 2: Convert to fraction form
    101,870.20/140,580.30 = 56,546.92/x
  3. Step 3: Cross multiply
    101,870.20x = 140,580.30 × 56,546.92
  4. Step 4: Simplify right side
    101,870.20x = 7,949,382,977.68
  5. Step 5: Solve for x
    x = 7,949,382,977.68/101,870.20
  6. Step 6: Final answer
    x = 78,034.43

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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.