Home / 234,145.10-323,120.65-126,715.22

Finding the Fourth Proportional to 234,145.10, 323,120.65 and 126,715.22

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Solution

The fourth proportional to 234,145.10, 323,120.65 and 126,715.22 is: 174,867.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,145.10 : 323,120.65 = 126,715.22 : x
  2. Step 2: Convert to fraction form
    234,145.10/323,120.65 = 126,715.22/x
  3. Step 3: Cross multiply
    234,145.10x = 323,120.65 × 126,715.22
  4. Step 4: Simplify right side
    234,145.10x = 40,944,304,742.31
  5. Step 5: Solve for x
    x = 40,944,304,742.31/234,145.10
  6. Step 6: Final answer
    x = 174,867.23

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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.