Home / 209,319.80-288,759.76-124,376.72

Finding the Fourth Proportional to 209,319.80, 288,759.76 and 124,376.72

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Solution

The fourth proportional to 209,319.80, 288,759.76 and 124,376.72 is: 171,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,319.80 : 288,759.76 = 124,376.72 : x
  2. Step 2: Convert to fraction form
    209,319.80/288,759.76 = 124,376.72/x
  3. Step 3: Cross multiply
    209,319.80x = 288,759.76 × 124,376.72
  4. Step 4: Simplify right side
    209,319.80x = 35,914,991,816.79
  5. Step 5: Solve for x
    x = 35,914,991,816.79/209,319.80
  6. Step 6: Final answer
    x = 171,579.52

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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.