Home / 121,289.76-167,384.97-67,574.73

Finding the Fourth Proportional to 121,289.76, 167,384.97 and 67,574.73

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Solution

The fourth proportional to 121,289.76, 167,384.97 and 67,574.73 is: 93,255.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,289.76 : 167,384.97 = 67,574.73 : x
  2. Step 2: Convert to fraction form
    121,289.76/167,384.97 = 67,574.73/x
  3. Step 3: Cross multiply
    121,289.76x = 167,384.97 × 67,574.73
  4. Step 4: Simplify right side
    121,289.76x = 11,310,994,153.81
  5. Step 5: Solve for x
    x = 11,310,994,153.81/121,289.76
  6. Step 6: Final answer
    x = 93,255.97

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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.