Home / 209,921.87-289,681.22-119,265.24

Finding the Fourth Proportional to 209,921.87, 289,681.22 and 119,265.24

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Solution

The fourth proportional to 209,921.87, 289,681.22 and 119,265.24 is: 164,579.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,921.87 : 289,681.22 = 119,265.24 : x
  2. Step 2: Convert to fraction form
    209,921.87/289,681.22 = 119,265.24/x
  3. Step 3: Cross multiply
    209,921.87x = 289,681.22 × 119,265.24
  4. Step 4: Simplify right side
    209,921.87x = 34,548,899,630.47
  5. Step 5: Solve for x
    x = 34,548,899,630.47/209,921.87
  6. Step 6: Final answer
    x = 164,579.81

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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.