Home / 209,137.86-288,635.10-124,255.26

Finding the Fourth Proportional to 209,137.86, 288,635.10 and 124,255.26

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Solution

The fourth proportional to 209,137.86, 288,635.10 and 124,255.26 is: 171,487.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,137.86 : 288,635.10 = 124,255.26 : x
  2. Step 2: Convert to fraction form
    209,137.86/288,635.10 = 124,255.26/x
  3. Step 3: Cross multiply
    209,137.86x = 288,635.10 × 124,255.26
  4. Step 4: Simplify right side
    209,137.86x = 35,864,429,395.63
  5. Step 5: Solve for x
    x = 35,864,429,395.63/209,137.86
  6. Step 6: Final answer
    x = 171,487.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.