Home / 131,879.70-197,819.55-43,111.80

Finding the Fourth Proportional to 131,879.70, 197,819.55 and 43,111.80

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Solution

The fourth proportional to 131,879.70, 197,819.55 and 43,111.80 is: 64,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,879.70 : 197,819.55 = 43,111.80 : x
  2. Step 2: Convert to fraction form
    131,879.70/197,819.55 = 43,111.80/x
  3. Step 3: Cross multiply
    131,879.70x = 197,819.55 × 43,111.80
  4. Step 4: Simplify right side
    131,879.70x = 8,528,356,875.69
  5. Step 5: Solve for x
    x = 8,528,356,875.69/131,879.70
  6. Step 6: Final answer
    x = 64,667.70

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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.