Home / 209,211.45-288,785.84-124,327.50

Finding the Fourth Proportional to 209,211.45, 288,785.84 and 124,327.50

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Solution

The fourth proportional to 209,211.45, 288,785.84 and 124,327.50 is: 171,615.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,211.45 : 288,785.84 = 124,327.50 : x
  2. Step 2: Convert to fraction form
    209,211.45/288,785.84 = 124,327.50/x
  3. Step 3: Cross multiply
    209,211.45x = 288,785.84 × 124,327.50
  4. Step 4: Simplify right side
    209,211.45x = 35,904,020,900.96
  5. Step 5: Solve for x
    x = 35,904,020,900.96/209,211.45
  6. Step 6: Final answer
    x = 171,615.95

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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.