Home / 159,259.68-239,037.21-80,429.31

Finding the Fourth Proportional to 159,259.68, 239,037.21 and 80,429.31

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Solution

The fourth proportional to 159,259.68, 239,037.21 and 80,429.31 is: 120,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,259.68 : 239,037.21 = 80,429.31 : x
  2. Step 2: Convert to fraction form
    159,259.68/239,037.21 = 80,429.31/x
  3. Step 3: Cross multiply
    159,259.68x = 239,037.21 × 80,429.31
  4. Step 4: Simplify right side
    159,259.68x = 19,225,597,864.63
  5. Step 5: Solve for x
    x = 19,225,597,864.63/159,259.68
  6. Step 6: Final answer
    x = 120,718.55

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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.