Home / 121,864.23-168,164.91-67,414.95

Finding the Fourth Proportional to 121,864.23, 168,164.91 and 67,414.95

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Solution

The fourth proportional to 121,864.23, 168,164.91 and 67,414.95 is: 93,028.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,864.23 : 168,164.91 = 67,414.95 : x
  2. Step 2: Convert to fraction form
    121,864.23/168,164.91 = 67,414.95/x
  3. Step 3: Cross multiply
    121,864.23x = 168,164.91 × 67,414.95
  4. Step 4: Simplify right side
    121,864.23x = 11,336,828,999.40
  5. Step 5: Solve for x
    x = 11,336,828,999.40/121,864.23
  6. Step 6: Final answer
    x = 93,028.36

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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.