Home / 147,639.26-221,488.05-54,145.82

Finding the Fourth Proportional to 147,639.26, 221,488.05 and 54,145.82

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Solution

The fourth proportional to 147,639.26, 221,488.05 and 54,145.82 is: 81,229.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,639.26 : 221,488.05 = 54,145.82 : x
  2. Step 2: Convert to fraction form
    147,639.26/221,488.05 = 54,145.82/x
  3. Step 3: Cross multiply
    147,639.26x = 221,488.05 × 54,145.82
  4. Step 4: Simplify right side
    147,639.26x = 11,992,650,980.01
  5. Step 5: Solve for x
    x = 11,992,650,980.01/147,639.26
  6. Step 6: Final answer
    x = 81,229.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.