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Finding the Fourth Proportional to 100,093.33, 138,130.55 and 54,775.33

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Solution

The fourth proportional to 100,093.33, 138,130.55 and 54,775.33 is: 75,590.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,093.33 : 138,130.55 = 54,775.33 : x
  2. Step 2: Convert to fraction form
    100,093.33/138,130.55 = 54,775.33/x
  3. Step 3: Cross multiply
    100,093.33x = 138,130.55 × 54,775.33
  4. Step 4: Simplify right side
    100,093.33x = 7,566,146,185.45
  5. Step 5: Solve for x
    x = 7,566,146,185.45/100,093.33
  6. Step 6: Final answer
    x = 75,590.91

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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.