Home / 115,636.86-173,327.88-75,639.36

Finding the Fourth Proportional to 115,636.86, 173,327.88 and 75,639.36

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Solution

The fourth proportional to 115,636.86, 173,327.88 and 75,639.36 is: 113,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,636.86 : 173,327.88 = 75,639.36 : x
  2. Step 2: Convert to fraction form
    115,636.86/173,327.88 = 75,639.36/x
  3. Step 3: Cross multiply
    115,636.86x = 173,327.88 × 75,639.36
  4. Step 4: Simplify right side
    115,636.86x = 13,110,409,913.36
  5. Step 5: Solve for x
    x = 13,110,409,913.36/115,636.86
  6. Step 6: Final answer
    x = 113,375.70

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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.