Home / 108,261.72-149,408.16-60,515.28

Finding the Fourth Proportional to 108,261.72, 149,408.16 and 60,515.28

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Solution

The fourth proportional to 108,261.72, 149,408.16 and 60,515.28 is: 83,514.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,261.72 : 149,408.16 = 60,515.28 : x
  2. Step 2: Convert to fraction form
    108,261.72/149,408.16 = 60,515.28/x
  3. Step 3: Cross multiply
    108,261.72x = 149,408.16 × 60,515.28
  4. Step 4: Simplify right side
    108,261.72x = 9,041,476,636.68
  5. Step 5: Solve for x
    x = 9,041,476,636.68/108,261.72
  6. Step 6: Final answer
    x = 83,514.99

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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.