Home / 89,954.16-134,721.33-71,107.68

Finding the Fourth Proportional to 89,954.16, 134,721.33 and 71,107.68

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Solution

The fourth proportional to 89,954.16, 134,721.33 and 71,107.68 is: 106,495.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,954.16 : 134,721.33 = 71,107.68 : x
  2. Step 2: Convert to fraction form
    89,954.16/134,721.33 = 71,107.68/x
  3. Step 3: Cross multiply
    89,954.16x = 134,721.33 × 71,107.68
  4. Step 4: Simplify right side
    89,954.16x = 9,579,721,222.81
  5. Step 5: Solve for x
    x = 9,579,721,222.81/89,954.16
  6. Step 6: Final answer
    x = 106,495.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.