Home / 159,284.47-219,813.19-87,667.04

Finding the Fourth Proportional to 159,284.47, 219,813.19 and 87,667.04

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Solution

The fourth proportional to 159,284.47, 219,813.19 and 87,667.04 is: 120,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,284.47 : 219,813.19 = 87,667.04 : x
  2. Step 2: Convert to fraction form
    159,284.47/219,813.19 = 87,667.04/x
  3. Step 3: Cross multiply
    159,284.47x = 219,813.19 × 87,667.04
  4. Step 4: Simplify right side
    159,284.47x = 19,270,370,621.19
  5. Step 5: Solve for x
    x = 19,270,370,621.19/159,284.47
  6. Step 6: Final answer
    x = 120,980.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.