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Finding the Fourth Proportional to 167,818.29, 251,728.11 and 67,980.36

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Solution

The fourth proportional to 167,818.29, 251,728.11 and 67,980.36 is: 101,970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,818.29 : 251,728.11 = 67,980.36 : x
  2. Step 2: Convert to fraction form
    167,818.29/251,728.11 = 67,980.36/x
  3. Step 3: Cross multiply
    167,818.29x = 251,728.11 × 67,980.36
  4. Step 4: Simplify right side
    167,818.29x = 17,112,567,539.92
  5. Step 5: Solve for x
    x = 17,112,567,539.92/167,818.29
  6. Step 6: Final answer
    x = 101,970.81

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1.5x scale

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.