Home / 131,366.80-197,001.60-42,623.20

Finding the Fourth Proportional to 131,366.80, 197,001.60 and 42,623.20

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Solution

The fourth proportional to 131,366.80, 197,001.60 and 42,623.20 is: 63,919.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,366.80 : 197,001.60 = 42,623.20 : x
  2. Step 2: Convert to fraction form
    131,366.80/197,001.60 = 42,623.20/x
  3. Step 3: Cross multiply
    131,366.80x = 197,001.60 × 42,623.20
  4. Step 4: Simplify right side
    131,366.80x = 8,396,838,597.12
  5. Step 5: Solve for x
    x = 8,396,838,597.12/131,366.80
  6. Step 6: Final answer
    x = 63,919.03

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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.