Home / 121,574.61-167,788.17-73,815.39

Finding the Fourth Proportional to 121,574.61, 167,788.17 and 73,815.39

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Solution

The fourth proportional to 121,574.61, 167,788.17 and 73,815.39 is: 101,874.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,574.61 : 167,788.17 = 73,815.39 : x
  2. Step 2: Convert to fraction form
    121,574.61/167,788.17 = 73,815.39/x
  3. Step 3: Cross multiply
    121,574.61x = 167,788.17 × 73,815.39
  4. Step 4: Simplify right side
    121,574.61x = 12,385,349,205.94
  5. Step 5: Solve for x
    x = 12,385,349,205.94/121,574.61
  6. Step 6: Final answer
    x = 101,874.47

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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.