Home / 115,429.78-173,159.31-36,515.50

Finding the Fourth Proportional to 115,429.78, 173,159.31 and 36,515.50

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Solution

The fourth proportional to 115,429.78, 173,159.31 and 36,515.50 is: 54,777.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,429.78 : 173,159.31 = 36,515.50 : x
  2. Step 2: Convert to fraction form
    115,429.78/173,159.31 = 36,515.50/x
  3. Step 3: Cross multiply
    115,429.78x = 173,159.31 × 36,515.50
  4. Step 4: Simplify right side
    115,429.78x = 6,322,998,784.31
  5. Step 5: Solve for x
    x = 6,322,998,784.31/115,429.78
  6. Step 6: Final answer
    x = 54,777.88

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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.