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Finding the Fourth Proportional to 130,993.76, 196,486.47 and 36,229.65

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Solution

The fourth proportional to 130,993.76, 196,486.47 and 36,229.65 is: 54,343.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,993.76 : 196,486.47 = 36,229.65 : x
  2. Step 2: Convert to fraction form
    130,993.76/196,486.47 = 36,229.65/x
  3. Step 3: Cross multiply
    130,993.76x = 196,486.47 × 36,229.65
  4. Step 4: Simplify right side
    130,993.76x = 7,118,636,037.84
  5. Step 5: Solve for x
    x = 7,118,636,037.84/130,993.76
  6. Step 6: Final answer
    x = 54,343.32

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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.