Home / 131,981.40-197,972.10-108,941.40

Finding the Fourth Proportional to 131,981.40, 197,972.10 and 108,941.40

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Solution

The fourth proportional to 131,981.40, 197,972.10 and 108,941.40 is: 163,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,981.40 : 197,972.10 = 108,941.40 : x
  2. Step 2: Convert to fraction form
    131,981.40/197,972.10 = 108,941.40/x
  3. Step 3: Cross multiply
    131,981.40x = 197,972.10 × 108,941.40
  4. Step 4: Simplify right side
    131,981.40x = 21,567,357,734.94
  5. Step 5: Solve for x
    x = 21,567,357,734.94/131,981.40
  6. Step 6: Final answer
    x = 163,412.10

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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.