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Finding the Fourth Proportional to 122,072, 168,445.18 and 71,095.88

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Solution

The fourth proportional to 122,072, 168,445.18 and 71,095.88 is: 98,104.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,072 : 168,445.18 = 71,095.88 : x
  2. Step 2: Convert to fraction form
    122,072/168,445.18 = 71,095.88/x
  3. Step 3: Cross multiply
    122,072x = 168,445.18 × 71,095.88
  4. Step 4: Simplify right side
    122,072x = 11,975,758,303.86
  5. Step 5: Solve for x
    x = 11,975,758,303.86/122,072
  6. Step 6: Final answer
    x = 98,104.06

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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.