Home / 91,628.58-138,067.14-75,353.22

Finding the Fourth Proportional to 91,628.58, 138,067.14 and 75,353.22

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Solution

The fourth proportional to 91,628.58, 138,067.14 and 75,353.22 is: 113,543.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,628.58 : 138,067.14 = 75,353.22 : x
  2. Step 2: Convert to fraction form
    91,628.58/138,067.14 = 75,353.22/x
  3. Step 3: Cross multiply
    91,628.58x = 138,067.14 × 75,353.22
  4. Step 4: Simplify right side
    91,628.58x = 10,403,803,575.19
  5. Step 5: Solve for x
    x = 10,403,803,575.19/91,628.58
  6. Step 6: Final answer
    x = 113,543.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.