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Finding the Fourth Proportional to 159,813.91, 220,541.25 and 88,192.36

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Solution

The fourth proportional to 159,813.91, 220,541.25 and 88,192.36 is: 121,704.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,813.91 : 220,541.25 = 88,192.36 : x
  2. Step 2: Convert to fraction form
    159,813.91/220,541.25 = 88,192.36/x
  3. Step 3: Cross multiply
    159,813.91x = 220,541.25 × 88,192.36
  4. Step 4: Simplify right side
    159,813.91x = 19,450,053,314.85
  5. Step 5: Solve for x
    x = 19,450,053,314.85/159,813.91
  6. Step 6: Final answer
    x = 121,704.38

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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.