Home / 173,039.10-259,704.45-78,414.90

Finding the Fourth Proportional to 173,039.10, 259,704.45 and 78,414.90

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Solution

The fourth proportional to 173,039.10, 259,704.45 and 78,414.90 is: 117,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,039.10 : 259,704.45 = 78,414.90 : x
  2. Step 2: Convert to fraction form
    173,039.10/259,704.45 = 78,414.90/x
  3. Step 3: Cross multiply
    173,039.10x = 259,704.45 × 78,414.90
  4. Step 4: Simplify right side
    173,039.10x = 20,364,698,476.31
  5. Step 5: Solve for x
    x = 20,364,698,476.31/173,039.10
  6. Step 6: Final answer
    x = 117,688.42

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1.5x scale

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.