Home / 159,815.72-239,830.60-66,321.56

Finding the Fourth Proportional to 159,815.72, 239,830.60 and 66,321.56

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Solution

The fourth proportional to 159,815.72, 239,830.60 and 66,321.56 is: 99,526.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,815.72 : 239,830.60 = 66,321.56 : x
  2. Step 2: Convert to fraction form
    159,815.72/239,830.60 = 66,321.56/x
  3. Step 3: Cross multiply
    159,815.72x = 239,830.60 × 66,321.56
  4. Step 4: Simplify right side
    159,815.72x = 15,905,939,527.74
  5. Step 5: Solve for x
    x = 15,905,939,527.74/159,815.72
  6. Step 6: Final answer
    x = 99,526.75

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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.