Home / 100,035.07-138,043.27-54,704.25

Finding the Fourth Proportional to 100,035.07, 138,043.27 and 54,704.25

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Solution

The fourth proportional to 100,035.07, 138,043.27 and 54,704.25 is: 75,489.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,035.07 : 138,043.27 = 54,704.25 : x
  2. Step 2: Convert to fraction form
    100,035.07/138,043.27 = 54,704.25/x
  3. Step 3: Cross multiply
    100,035.07x = 138,043.27 × 54,704.25
  4. Step 4: Simplify right side
    100,035.07x = 7,551,553,552.90
  5. Step 5: Solve for x
    x = 7,551,553,552.90/100,035.07
  6. Step 6: Final answer
    x = 75,489.06

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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.