Home / 101,340.28-139,908.90-69,555.88

Finding the Fourth Proportional to 101,340.28, 139,908.90 and 69,555.88

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Solution

The fourth proportional to 101,340.28, 139,908.90 and 69,555.88 is: 96,027.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,340.28 : 139,908.90 = 69,555.88 : x
  2. Step 2: Convert to fraction form
    101,340.28/139,908.90 = 69,555.88/x
  3. Step 3: Cross multiply
    101,340.28x = 139,908.90 × 69,555.88
  4. Step 4: Simplify right side
    101,340.28x = 9,731,486,659.33
  5. Step 5: Solve for x
    x = 9,731,486,659.33/101,340.28
  6. Step 6: Final answer
    x = 96,027.82

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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.