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Finding the Fourth Proportional to 130,262.62, 179,762.42 and 73,672.78

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Solution

The fourth proportional to 130,262.62, 179,762.42 and 73,672.78 is: 101,668.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,262.62 : 179,762.42 = 73,672.78 : x
  2. Step 2: Convert to fraction form
    130,262.62/179,762.42 = 73,672.78/x
  3. Step 3: Cross multiply
    130,262.62x = 179,762.42 × 73,672.78
  4. Step 4: Simplify right side
    130,262.62x = 13,243,597,220.93
  5. Step 5: Solve for x
    x = 13,243,597,220.93/130,262.62
  6. Step 6: Final answer
    x = 101,668.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.