Home / 209,516.95-288,932.37-140,761.75

Finding the Fourth Proportional to 209,516.95, 288,932.37 and 140,761.75

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Solution

The fourth proportional to 209,516.95, 288,932.37 and 140,761.75 is: 194,116.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,516.95 : 288,932.37 = 140,761.75 : x
  2. Step 2: Convert to fraction form
    209,516.95/288,932.37 = 140,761.75/x
  3. Step 3: Cross multiply
    209,516.95x = 288,932.37 × 140,761.75
  4. Step 4: Simplify right side
    209,516.95x = 40,670,626,032.85
  5. Step 5: Solve for x
    x = 40,670,626,032.85/209,516.95
  6. Step 6: Final answer
    x = 194,116.16

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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.