Home / 152,766.90-210,843.68-89,104.70

Finding the Fourth Proportional to 152,766.90, 210,843.68 and 89,104.70

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Solution

The fourth proportional to 152,766.90, 210,843.68 and 89,104.70 is: 122,979.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,766.90 : 210,843.68 = 89,104.70 : x
  2. Step 2: Convert to fraction form
    152,766.90/210,843.68 = 89,104.70/x
  3. Step 3: Cross multiply
    152,766.90x = 210,843.68 × 89,104.70
  4. Step 4: Simplify right side
    152,766.90x = 18,787,162,853.30
  5. Step 5: Solve for x
    x = 18,787,162,853.30/152,766.90
  6. Step 6: Final answer
    x = 122,979.28

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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.