Home / 131,426.60-197,139.90-48,309.80

Finding the Fourth Proportional to 131,426.60, 197,139.90 and 48,309.80

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Solution

The fourth proportional to 131,426.60, 197,139.90 and 48,309.80 is: 72,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,426.60 : 197,139.90 = 48,309.80 : x
  2. Step 2: Convert to fraction form
    131,426.60/197,139.90 = 48,309.80/x
  3. Step 3: Cross multiply
    131,426.60x = 197,139.90 × 48,309.80
  4. Step 4: Simplify right side
    131,426.60x = 9,523,789,141.02
  5. Step 5: Solve for x
    x = 9,523,789,141.02/131,426.60
  6. Step 6: Final answer
    x = 72,464.70

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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.