Home / 131,321.20-196,981.80-61,337.20

Finding the Fourth Proportional to 131,321.20, 196,981.80 and 61,337.20

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Solution

The fourth proportional to 131,321.20, 196,981.80 and 61,337.20 is: 92,005.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,321.20 : 196,981.80 = 61,337.20 : x
  2. Step 2: Convert to fraction form
    131,321.20/196,981.80 = 61,337.20/x
  3. Step 3: Cross multiply
    131,321.20x = 196,981.80 × 61,337.20
  4. Step 4: Simplify right side
    131,321.20x = 12,082,312,062.96
  5. Step 5: Solve for x
    x = 12,082,312,062.96/131,321.20
  6. Step 6: Final answer
    x = 92,005.80

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1.5x scale

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.