Home / 209,974.17-289,756.01-123,960.86

Finding the Fourth Proportional to 209,974.17, 289,756.01 and 123,960.86

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Solution

The fourth proportional to 209,974.17, 289,756.01 and 123,960.86 is: 171,061.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,974.17 : 289,756.01 = 123,960.86 : x
  2. Step 2: Convert to fraction form
    209,974.17/289,756.01 = 123,960.86/x
  3. Step 3: Cross multiply
    209,974.17x = 289,756.01 × 123,960.86
  4. Step 4: Simplify right side
    209,974.17x = 35,918,403,155.48
  5. Step 5: Solve for x
    x = 35,918,403,155.48/209,974.17
  6. Step 6: Final answer
    x = 171,061.06

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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.