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Finding the Fourth Proportional to 159,187.82, 219,471 and 115,541.18

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Solution

The fourth proportional to 159,187.82, 219,471 and 115,541.18 is: 159,295.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,187.82 : 219,471 = 115,541.18 : x
  2. Step 2: Convert to fraction form
    159,187.82/219,471 = 115,541.18/x
  3. Step 3: Cross multiply
    159,187.82x = 219,471 × 115,541.18
  4. Step 4: Simplify right side
    159,187.82x = 25,357,938,315.78
  5. Step 5: Solve for x
    x = 25,357,938,315.78/159,187.82
  6. Step 6: Final answer
    x = 159,295.72

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1.5x scale

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.