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Finding the Fourth Proportional to 94,339.78, 130,166.36 and 63,769.88

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Solution

The fourth proportional to 94,339.78, 130,166.36 and 63,769.88 is: 87,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,339.78 : 130,166.36 = 63,769.88 : x
  2. Step 2: Convert to fraction form
    94,339.78/130,166.36 = 63,769.88/x
  3. Step 3: Cross multiply
    94,339.78x = 130,166.36 × 63,769.88
  4. Step 4: Simplify right side
    94,339.78x = 8,300,693,157.24
  5. Step 5: Solve for x
    x = 8,300,693,157.24/94,339.78
  6. Step 6: Final answer
    x = 87,987.20

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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.