Home / 159,917.25-239,283.96-128,230.45

Finding the Fourth Proportional to 159,917.25, 239,283.96 and 128,230.45

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Solution

The fourth proportional to 159,917.25, 239,283.96 and 128,230.45 is: 191,871.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,917.25 : 239,283.96 = 128,230.45 : x
  2. Step 2: Convert to fraction form
    159,917.25/239,283.96 = 128,230.45/x
  3. Step 3: Cross multiply
    159,917.25x = 239,283.96 × 128,230.45
  4. Step 4: Simplify right side
    159,917.25x = 30,683,489,868.58
  5. Step 5: Solve for x
    x = 30,683,489,868.58/159,917.25
  6. Step 6: Final answer
    x = 191,871.04

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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.