Home / 131,214.12-196,908.05-72,091

Finding the Fourth Proportional to 131,214.12, 196,908.05 and 72,091

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Solution

The fourth proportional to 131,214.12, 196,908.05 and 72,091 is: 108,184.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,214.12 : 196,908.05 = 72,091 : x
  2. Step 2: Convert to fraction form
    131,214.12/196,908.05 = 72,091/x
  3. Step 3: Cross multiply
    131,214.12x = 196,908.05 × 72,091
  4. Step 4: Simplify right side
    131,214.12x = 14,195,298,232.55
  5. Step 5: Solve for x
    x = 14,195,298,232.55/131,214.12
  6. Step 6: Final answer
    x = 108,184.23

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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.