Home / 131,404.22-196,820.05-86,374.75

Finding the Fourth Proportional to 131,404.22, 196,820.05 and 86,374.75

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Solution

The fourth proportional to 131,404.22, 196,820.05 and 86,374.75 is: 129,373.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,404.22 : 196,820.05 = 86,374.75 : x
  2. Step 2: Convert to fraction form
    131,404.22/196,820.05 = 86,374.75/x
  3. Step 3: Cross multiply
    131,404.22x = 196,820.05 × 86,374.75
  4. Step 4: Simplify right side
    131,404.22x = 17,000,281,197.76
  5. Step 5: Solve for x
    x = 17,000,281,197.76/131,404.22
  6. Step 6: Final answer
    x = 129,373.93

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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.