Home / 147,285.50-203,275.19-106,581.78

Finding the Fourth Proportional to 147,285.50, 203,275.19 and 106,581.78

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Solution

The fourth proportional to 147,285.50, 203,275.19 and 106,581.78 is: 147,098.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,285.50 : 203,275.19 = 106,581.78 : x
  2. Step 2: Convert to fraction form
    147,285.50/203,275.19 = 106,581.78/x
  3. Step 3: Cross multiply
    147,285.50x = 203,275.19 × 106,581.78
  4. Step 4: Simplify right side
    147,285.50x = 21,665,431,047.13
  5. Step 5: Solve for x
    x = 21,665,431,047.13/147,285.50
  6. Step 6: Final answer
    x = 147,098.20

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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.