Home / 131,194.10-196,820.40-42,445.64

Finding the Fourth Proportional to 131,194.10, 196,820.40 and 42,445.64

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Solution

The fourth proportional to 131,194.10, 196,820.40 and 42,445.64 is: 63,677.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,194.10 : 196,820.40 = 42,445.64 : x
  2. Step 2: Convert to fraction form
    131,194.10/196,820.40 = 42,445.64/x
  3. Step 3: Cross multiply
    131,194.10x = 196,820.40 × 42,445.64
  4. Step 4: Simplify right side
    131,194.10x = 8,354,167,843.06
  5. Step 5: Solve for x
    x = 8,354,167,843.06/131,194.10
  6. Step 6: Final answer
    x = 63,677.92

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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.