Home / 152,165.43-209,986.83-85,097.43

Finding the Fourth Proportional to 152,165.43, 209,986.83 and 85,097.43

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Solution

The fourth proportional to 152,165.43, 209,986.83 and 85,097.43 is: 117,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,165.43 : 209,986.83 = 85,097.43 : x
  2. Step 2: Convert to fraction form
    152,165.43/209,986.83 = 85,097.43/x
  3. Step 3: Cross multiply
    152,165.43x = 209,986.83 × 85,097.43
  4. Step 4: Simplify right side
    152,165.43x = 17,869,339,566.85
  5. Step 5: Solve for x
    x = 17,869,339,566.85/152,165.43
  6. Step 6: Final answer
    x = 117,433.64

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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.