Home / 142,110.45-212,906.48-115,672.05

Finding the Fourth Proportional to 142,110.45, 212,906.48 and 115,672.05

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Solution

The fourth proportional to 142,110.45, 212,906.48 and 115,672.05 is: 173,297.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,110.45 : 212,906.48 = 115,672.05 : x
  2. Step 2: Convert to fraction form
    142,110.45/212,906.48 = 115,672.05/x
  3. Step 3: Cross multiply
    142,110.45x = 212,906.48 × 115,672.05
  4. Step 4: Simplify right side
    142,110.45x = 24,627,328,421.52
  5. Step 5: Solve for x
    x = 24,627,328,421.52/142,110.45
  6. Step 6: Final answer
    x = 173,297.10

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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.