Home / 100,325.03-138,452.91-60,031.08

Finding the Fourth Proportional to 100,325.03, 138,452.91 and 60,031.08

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Solution

The fourth proportional to 100,325.03, 138,452.91 and 60,031.08 is: 82,845.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,325.03 : 138,452.91 = 60,031.08 : x
  2. Step 2: Convert to fraction form
    100,325.03/138,452.91 = 60,031.08/x
  3. Step 3: Cross multiply
    100,325.03x = 138,452.91 × 60,031.08
  4. Step 4: Simplify right side
    100,325.03x = 8,311,477,716.44
  5. Step 5: Solve for x
    x = 8,311,477,716.44/100,325.03
  6. Step 6: Final answer
    x = 82,845.51

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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.