Home / 180,930.62-249,685.47-100,359.52

Finding the Fourth Proportional to 180,930.62, 249,685.47 and 100,359.52

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Solution

The fourth proportional to 180,930.62, 249,685.47 and 100,359.52 is: 138,496.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,930.62 : 249,685.47 = 100,359.52 : x
  2. Step 2: Convert to fraction form
    180,930.62/249,685.47 = 100,359.52/x
  3. Step 3: Cross multiply
    180,930.62x = 249,685.47 × 100,359.52
  4. Step 4: Simplify right side
    180,930.62x = 25,058,313,295.96
  5. Step 5: Solve for x
    x = 25,058,313,295.96/180,930.62
  6. Step 6: Final answer
    x = 138,496.81

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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.