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Finding the Fourth Proportional to 159,898.86, 239,797.26 and 65,128.86

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Solution

The fourth proportional to 159,898.86, 239,797.26 and 65,128.86 is: 97,672.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,898.86 : 239,797.26 = 65,128.86 : x
  2. Step 2: Convert to fraction form
    159,898.86/239,797.26 = 65,128.86/x
  3. Step 3: Cross multiply
    159,898.86x = 239,797.26 × 65,128.86
  4. Step 4: Simplify right side
    159,898.86x = 15,617,722,174.92
  5. Step 5: Solve for x
    x = 15,617,722,174.92/159,898.86
  6. Step 6: Final answer
    x = 97,672.50

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1.5x scale

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.