Home / 131,213.80-196,820.70-84,519.40

Finding the Fourth Proportional to 131,213.80, 196,820.70 and 84,519.40

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Solution

The fourth proportional to 131,213.80, 196,820.70 and 84,519.40 is: 126,779.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,213.80 : 196,820.70 = 84,519.40 : x
  2. Step 2: Convert to fraction form
    131,213.80/196,820.70 = 84,519.40/x
  3. Step 3: Cross multiply
    131,213.80x = 196,820.70 × 84,519.40
  4. Step 4: Simplify right side
    131,213.80x = 16,635,167,471.58
  5. Step 5: Solve for x
    x = 16,635,167,471.58/131,213.80
  6. Step 6: Final answer
    x = 126,779.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.