Home / 131,238.68-196,675.02-99,191.44

Finding the Fourth Proportional to 131,238.68, 196,675.02 and 99,191.44

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Solution

The fourth proportional to 131,238.68, 196,675.02 and 99,191.44 is: 148,648.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,238.68 : 196,675.02 = 99,191.44 : x
  2. Step 2: Convert to fraction form
    131,238.68/196,675.02 = 99,191.44/x
  3. Step 3: Cross multiply
    131,238.68x = 196,675.02 × 99,191.44
  4. Step 4: Simplify right side
    131,238.68x = 19,508,478,445.83
  5. Step 5: Solve for x
    x = 19,508,478,445.83/131,238.68
  6. Step 6: Final answer
    x = 148,648.85

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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.