Home / 159,928.16-239,869.92-87,903.68

Finding the Fourth Proportional to 159,928.16, 239,869.92 and 87,903.68

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Solution

The fourth proportional to 159,928.16, 239,869.92 and 87,903.68 is: 131,843.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,928.16 : 239,869.92 = 87,903.68 : x
  2. Step 2: Convert to fraction form
    159,928.16/239,869.92 = 87,903.68/x
  3. Step 3: Cross multiply
    159,928.16x = 239,869.92 × 87,903.68
  4. Step 4: Simplify right side
    159,928.16x = 21,085,448,689.31
  5. Step 5: Solve for x
    x = 21,085,448,689.31/159,928.16
  6. Step 6: Final answer
    x = 131,843.25

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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.