Home / 147,719.28-203,874.12-84,072.72

Finding the Fourth Proportional to 147,719.28, 203,874.12 and 84,072.72

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Solution

The fourth proportional to 147,719.28, 203,874.12 and 84,072.72 is: 116,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,719.28 : 203,874.12 = 84,072.72 : x
  2. Step 2: Convert to fraction form
    147,719.28/203,874.12 = 84,072.72/x
  3. Step 3: Cross multiply
    147,719.28x = 203,874.12 × 84,072.72
  4. Step 4: Simplify right side
    147,719.28x = 17,140,251,806.01
  5. Step 5: Solve for x
    x = 17,140,251,806.01/147,719.28
  6. Step 6: Final answer
    x = 116,032.60

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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.