Home / 159,814.20-239,634.90-66,329.40

Finding the Fourth Proportional to 159,814.20, 239,634.90 and 66,329.40

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Solution

The fourth proportional to 159,814.20, 239,634.90 and 66,329.40 is: 99,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,814.20 : 239,634.90 = 66,329.40 : x
  2. Step 2: Convert to fraction form
    159,814.20/239,634.90 = 66,329.40/x
  3. Step 3: Cross multiply
    159,814.20x = 239,634.90 × 66,329.40
  4. Step 4: Simplify right side
    159,814.20x = 15,894,839,136.06
  5. Step 5: Solve for x
    x = 15,894,839,136.06/159,814.20
  6. Step 6: Final answer
    x = 99,458.24

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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.