Home / 173,137.20-259,705.80-143,612.70

Finding the Fourth Proportional to 173,137.20, 259,705.80 and 143,612.70

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Solution

The fourth proportional to 173,137.20, 259,705.80 and 143,612.70 is: 215,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,137.20 : 259,705.80 = 143,612.70 : x
  2. Step 2: Convert to fraction form
    173,137.20/259,705.80 = 143,612.70/x
  3. Step 3: Cross multiply
    173,137.20x = 259,705.80 × 143,612.70
  4. Step 4: Simplify right side
    173,137.20x = 37,297,051,143.66
  5. Step 5: Solve for x
    x = 37,297,051,143.66/173,137.20
  6. Step 6: Final answer
    x = 215,419.05

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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.