Home / 100,275.27-138,375.81-59,965.26

Finding the Fourth Proportional to 100,275.27, 138,375.81 and 59,965.26

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Solution

The fourth proportional to 100,275.27, 138,375.81 and 59,965.26 is: 82,749.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,275.27 : 138,375.81 = 59,965.26 : x
  2. Step 2: Convert to fraction form
    100,275.27/138,375.81 = 59,965.26/x
  3. Step 3: Cross multiply
    100,275.27x = 138,375.81 × 59,965.26
  4. Step 4: Simplify right side
    100,275.27x = 8,297,741,424.36
  5. Step 5: Solve for x
    x = 8,297,741,424.36/100,275.27
  6. Step 6: Final answer
    x = 82,749.63

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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.