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Finding the Fourth Proportional to 136,100.16, 187,818.03 and 75,668.88

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Solution

The fourth proportional to 136,100.16, 187,818.03 and 75,668.88 is: 104,422.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,100.16 : 187,818.03 = 75,668.88 : x
  2. Step 2: Convert to fraction form
    136,100.16/187,818.03 = 75,668.88/x
  3. Step 3: Cross multiply
    136,100.16x = 187,818.03 × 75,668.88
  4. Step 4: Simplify right side
    136,100.16x = 14,211,979,973.91
  5. Step 5: Solve for x
    x = 14,211,979,973.91/136,100.16
  6. Step 6: Final answer
    x = 104,422.95

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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.