Home / 400,981.52-601,606.56-131,122.11

Finding the Fourth Proportional to 400,981.52, 601,606.56 and 131,122.11

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Solution

The fourth proportional to 400,981.52, 601,606.56 and 131,122.11 is: 196,727.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,981.52 : 601,606.56 = 131,122.11 : x
  2. Step 2: Convert to fraction form
    400,981.52/601,606.56 = 131,122.11/x
  3. Step 3: Cross multiply
    400,981.52x = 601,606.56 × 131,122.11
  4. Step 4: Simplify right side
    400,981.52x = 78,883,921,537.04
  5. Step 5: Solve for x
    x = 78,883,921,537.04/400,981.52
  6. Step 6: Final answer
    x = 196,727.08

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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.