Home / 196,408.85-271,036.56-120,055.78

Finding the Fourth Proportional to 196,408.85, 271,036.56 and 120,055.78

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Solution

The fourth proportional to 196,408.85, 271,036.56 and 120,055.78 is: 165,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,408.85 : 271,036.56 = 120,055.78 : x
  2. Step 2: Convert to fraction form
    196,408.85/271,036.56 = 120,055.78/x
  3. Step 3: Cross multiply
    196,408.85x = 271,036.56 × 120,055.78
  4. Step 4: Simplify right side
    196,408.85x = 32,539,506,408.32
  5. Step 5: Solve for x
    x = 32,539,506,408.32/196,408.85
  6. Step 6: Final answer
    x = 165,672.31

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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.