Home / 121,501.25-167,671.83-67,786.28

Finding the Fourth Proportional to 121,501.25, 167,671.83 and 67,786.28

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Solution

The fourth proportional to 121,501.25, 167,671.83 and 67,786.28 is: 93,545.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,501.25 : 167,671.83 = 67,786.28 : x
  2. Step 2: Convert to fraction form
    121,501.25/167,671.83 = 67,786.28/x
  3. Step 3: Cross multiply
    121,501.25x = 167,671.83 × 67,786.28
  4. Step 4: Simplify right side
    121,501.25x = 11,365,849,616.49
  5. Step 5: Solve for x
    x = 11,365,849,616.49/121,501.25
  6. Step 6: Final answer
    x = 93,545.12

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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.