Home / 100,338.48-138,471.35-60,044.45

Finding the Fourth Proportional to 100,338.48, 138,471.35 and 60,044.45

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Solution

The fourth proportional to 100,338.48, 138,471.35 and 60,044.45 is: 82,863.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,338.48 : 138,471.35 = 60,044.45 : x
  2. Step 2: Convert to fraction form
    100,338.48/138,471.35 = 60,044.45/x
  3. Step 3: Cross multiply
    100,338.48x = 138,471.35 × 60,044.45
  4. Step 4: Simplify right side
    100,338.48x = 8,314,435,058.93
  5. Step 5: Solve for x
    x = 8,314,435,058.93/100,338.48
  6. Step 6: Final answer
    x = 82,863.87

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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.