Home / 143,093.05-197,428.40-89,432.58

Finding the Fourth Proportional to 143,093.05, 197,428.40 and 89,432.58

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Solution

The fourth proportional to 143,093.05, 197,428.40 and 89,432.58 is: 123,391.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,093.05 : 197,428.40 = 89,432.58 : x
  2. Step 2: Convert to fraction form
    143,093.05/197,428.40 = 89,432.58/x
  3. Step 3: Cross multiply
    143,093.05x = 197,428.40 × 89,432.58
  4. Step 4: Simplify right side
    143,093.05x = 17,656,531,177.27
  5. Step 5: Solve for x
    x = 17,656,531,177.27/143,093.05
  6. Step 6: Final answer
    x = 123,391.95

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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.