Home / 185,308.43-255,725.51-100,425.49

Finding the Fourth Proportional to 185,308.43, 255,725.51 and 100,425.49

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Solution

The fourth proportional to 185,308.43, 255,725.51 and 100,425.49 is: 138,587.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,308.43 : 255,725.51 = 100,425.49 : x
  2. Step 2: Convert to fraction form
    185,308.43/255,725.51 = 100,425.49/x
  3. Step 3: Cross multiply
    185,308.43x = 255,725.51 × 100,425.49
  4. Step 4: Simplify right side
    185,308.43x = 25,681,358,505.81
  5. Step 5: Solve for x
    x = 25,681,358,505.81/185,308.43
  6. Step 6: Final answer
    x = 138,587.11

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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.