Home / 181,003.58-249,781.12-100,429.37

Finding the Fourth Proportional to 181,003.58, 249,781.12 and 100,429.37

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Solution

The fourth proportional to 181,003.58, 249,781.12 and 100,429.37 is: 138,590.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,003.58 : 249,781.12 = 100,429.37 : x
  2. Step 2: Convert to fraction form
    181,003.58/249,781.12 = 100,429.37/x
  3. Step 3: Cross multiply
    181,003.58x = 249,781.12 × 100,429.37
  4. Step 4: Simplify right side
    181,003.58x = 25,085,360,519.49
  5. Step 5: Solve for x
    x = 25,085,360,519.49/181,003.58
  6. Step 6: Final answer
    x = 138,590.41

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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.