Home / 154,563.26-231,688.03-87,865.57

Finding the Fourth Proportional to 154,563.26, 231,688.03 and 87,865.57

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Solution

The fourth proportional to 154,563.26, 231,688.03 and 87,865.57 is: 131,709.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,563.26 : 231,688.03 = 87,865.57 : x
  2. Step 2: Convert to fraction form
    154,563.26/231,688.03 = 87,865.57/x
  3. Step 3: Cross multiply
    154,563.26x = 231,688.03 × 87,865.57
  4. Step 4: Simplify right side
    154,563.26x = 20,357,400,818.13
  5. Step 5: Solve for x
    x = 20,357,400,818.13/154,563.26
  6. Step 6: Final answer
    x = 131,709.18

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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.