Home / 154,295.49-231,216.80-86,958.61

Finding the Fourth Proportional to 154,295.49, 231,216.80 and 86,958.61

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Solution

The fourth proportional to 154,295.49, 231,216.80 and 86,958.61 is: 130,310.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,295.49 : 231,216.80 = 86,958.61 : x
  2. Step 2: Convert to fraction form
    154,295.49/231,216.80 = 86,958.61/x
  3. Step 3: Cross multiply
    154,295.49x = 231,216.80 × 86,958.61
  4. Step 4: Simplify right side
    154,295.49x = 20,106,291,101.86
  5. Step 5: Solve for x
    x = 20,106,291,101.86/154,295.49
  6. Step 6: Final answer
    x = 130,310.30

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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.