Home / 209,921.74-289,681.05-119,265.10

Finding the Fourth Proportional to 209,921.74, 289,681.05 and 119,265.10

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Solution

The fourth proportional to 209,921.74, 289,681.05 and 119,265.10 is: 164,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,921.74 : 289,681.05 = 119,265.10 : x
  2. Step 2: Convert to fraction form
    209,921.74/289,681.05 = 119,265.10/x
  3. Step 3: Cross multiply
    209,921.74x = 289,681.05 × 119,265.10
  4. Step 4: Simplify right side
    209,921.74x = 34,548,839,396.36
  5. Step 5: Solve for x
    x = 34,548,839,396.36/209,921.74
  6. Step 6: Final answer
    x = 164,579.62

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1.5x scale

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.