Home / 147,836.42-221,763.54-100,431.44

Finding the Fourth Proportional to 147,836.42, 221,763.54 and 100,431.44

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Solution

The fourth proportional to 147,836.42, 221,763.54 and 100,431.44 is: 150,653.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,836.42 : 221,763.54 = 100,431.44 : x
  2. Step 2: Convert to fraction form
    147,836.42/221,763.54 = 100,431.44/x
  3. Step 3: Cross multiply
    147,836.42x = 221,763.54 × 100,431.44
  4. Step 4: Simplify right side
    147,836.42x = 22,272,031,661.70
  5. Step 5: Solve for x
    x = 22,272,031,661.70/147,836.42
  6. Step 6: Final answer
    x = 150,653.21

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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.