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Finding the Fourth Proportional to 159,772.70, 239,625.45 and 80,812.70

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Solution

The fourth proportional to 159,772.70, 239,625.45 and 80,812.70 is: 121,202.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,772.70 : 239,625.45 = 80,812.70 : x
  2. Step 2: Convert to fraction form
    159,772.70/239,625.45 = 80,812.70/x
  3. Step 3: Cross multiply
    159,772.70x = 239,625.45 × 80,812.70
  4. Step 4: Simplify right side
    159,772.70x = 19,364,779,603.22
  5. Step 5: Solve for x
    x = 19,364,779,603.22/159,772.70
  6. Step 6: Final answer
    x = 121,202.06

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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.