Home / 159,390.08-239,085.12-54,284.48

Finding the Fourth Proportional to 159,390.08, 239,085.12 and 54,284.48

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Solution

The fourth proportional to 159,390.08, 239,085.12 and 54,284.48 is: 81,426.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,390.08 : 239,085.12 = 54,284.48 : x
  2. Step 2: Convert to fraction form
    159,390.08/239,085.12 = 54,284.48/x
  3. Step 3: Cross multiply
    159,390.08x = 239,085.12 × 54,284.48
  4. Step 4: Simplify right side
    159,390.08x = 12,978,611,414.94
  5. Step 5: Solve for x
    x = 12,978,611,414.94/159,390.08
  6. Step 6: Final answer
    x = 81,426.72

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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.