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Finding the Fourth Proportional to 130,491.58, 195,768.01 and 40,529.70

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Solution

The fourth proportional to 130,491.58, 195,768.01 and 40,529.70 is: 60,804.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,491.58 : 195,768.01 = 40,529.70 : x
  2. Step 2: Convert to fraction form
    130,491.58/195,768.01 = 40,529.70/x
  3. Step 3: Cross multiply
    130,491.58x = 195,768.01 × 40,529.70
  4. Step 4: Simplify right side
    130,491.58x = 7,934,418,714.90
  5. Step 5: Solve for x
    x = 7,934,418,714.90/130,491.58
  6. Step 6: Final answer
    x = 60,804.07

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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.