Home / 131,439.40-197,159.10-36,669.40

Finding the Fourth Proportional to 131,439.40, 197,159.10 and 36,669.40

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Solution

The fourth proportional to 131,439.40, 197,159.10 and 36,669.40 is: 55,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,439.40 : 197,159.10 = 36,669.40 : x
  2. Step 2: Convert to fraction form
    131,439.40/197,159.10 = 36,669.40/x
  3. Step 3: Cross multiply
    131,439.40x = 197,159.10 × 36,669.40
  4. Step 4: Simplify right side
    131,439.40x = 7,229,705,901.54
  5. Step 5: Solve for x
    x = 7,229,705,901.54/131,439.40
  6. Step 6: Final answer
    x = 55,004.10

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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.