Home / 131,423.20-197,134.80-61,309.60

Finding the Fourth Proportional to 131,423.20, 197,134.80 and 61,309.60

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Solution

The fourth proportional to 131,423.20, 197,134.80 and 61,309.60 is: 91,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,423.20 : 197,134.80 = 61,309.60 : x
  2. Step 2: Convert to fraction form
    131,423.20/197,134.80 = 61,309.60/x
  3. Step 3: Cross multiply
    131,423.20x = 197,134.80 × 61,309.60
  4. Step 4: Simplify right side
    131,423.20x = 12,086,255,734.08
  5. Step 5: Solve for x
    x = 12,086,255,734.08/131,423.20
  6. Step 6: Final answer
    x = 91,964.40

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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.