Home / 112,009.05-167,988.60-67,574.79

Finding the Fourth Proportional to 112,009.05, 167,988.60 and 67,574.79

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Solution

The fourth proportional to 112,009.05, 167,988.60 and 67,574.79 is: 101,347.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,009.05 : 167,988.60 = 67,574.79 : x
  2. Step 2: Convert to fraction form
    112,009.05/167,988.60 = 67,574.79/x
  3. Step 3: Cross multiply
    112,009.05x = 167,988.60 × 67,574.79
  4. Step 4: Simplify right side
    112,009.05x = 11,351,794,367.39
  5. Step 5: Solve for x
    x = 11,351,794,367.39/112,009.05
  6. Step 6: Final answer
    x = 101,347.12

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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.