Home / 147,345.41-203,363.26-86,912.46

Finding the Fourth Proportional to 147,345.41, 203,363.26 and 86,912.46

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Solution

The fourth proportional to 147,345.41, 203,363.26 and 86,912.46 is: 119,954.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,345.41 : 203,363.26 = 86,912.46 : x
  2. Step 2: Convert to fraction form
    147,345.41/203,363.26 = 86,912.46/x
  3. Step 3: Cross multiply
    147,345.41x = 203,363.26 × 86,912.46
  4. Step 4: Simplify right side
    147,345.41x = 17,674,800,982.94
  5. Step 5: Solve for x
    x = 17,674,800,982.94/147,345.41
  6. Step 6: Final answer
    x = 119,954.88

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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.