Home / 209,784.79-289,452.85-124,929.19

Finding the Fourth Proportional to 209,784.79, 289,452.85 and 124,929.19

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Solution

The fourth proportional to 209,784.79, 289,452.85 and 124,929.19 is: 172,372.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,784.79 : 289,452.85 = 124,929.19 : x
  2. Step 2: Convert to fraction form
    209,784.79/289,452.85 = 124,929.19/x
  3. Step 3: Cross multiply
    209,784.79x = 289,452.85 × 124,929.19
  4. Step 4: Simplify right side
    209,784.79x = 36,161,110,093.69
  5. Step 5: Solve for x
    x = 36,161,110,093.69/209,784.79
  6. Step 6: Final answer
    x = 172,372.41

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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.