Home / 209,550.61-289,186.10-129,024.59

Finding the Fourth Proportional to 209,550.61, 289,186.10 and 129,024.59

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Solution

The fourth proportional to 209,550.61, 289,186.10 and 129,024.59 is: 178,057.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,550.61 : 289,186.10 = 129,024.59 : x
  2. Step 2: Convert to fraction form
    209,550.61/289,186.10 = 129,024.59/x
  3. Step 3: Cross multiply
    209,550.61x = 289,186.10 × 129,024.59
  4. Step 4: Simplify right side
    209,550.61x = 37,312,117,986.20
  5. Step 5: Solve for x
    x = 37,312,117,986.20/209,550.61
  6. Step 6: Final answer
    x = 178,057.79

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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.