Home / 121,856.99-167,788.82-106,664.63

Finding the Fourth Proportional to 121,856.99, 167,788.82 and 106,664.63

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Solution

The fourth proportional to 121,856.99, 167,788.82 and 106,664.63 is: 146,869.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,856.99 : 167,788.82 = 106,664.63 : x
  2. Step 2: Convert to fraction form
    121,856.99/167,788.82 = 106,664.63/x
  3. Step 3: Cross multiply
    121,856.99x = 167,788.82 × 106,664.63
  4. Step 4: Simplify right side
    121,856.99x = 17,897,131,870.11
  5. Step 5: Solve for x
    x = 17,897,131,870.11/121,856.99
  6. Step 6: Final answer
    x = 146,869.97

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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.