Home / 100,575.48-138,778.75-58,125.82

Finding the Fourth Proportional to 100,575.48, 138,778.75 and 58,125.82

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Solution

The fourth proportional to 100,575.48, 138,778.75 and 58,125.82 is: 80,204.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,575.48 : 138,778.75 = 58,125.82 : x
  2. Step 2: Convert to fraction form
    100,575.48/138,778.75 = 58,125.82/x
  3. Step 3: Cross multiply
    100,575.48x = 138,778.75 × 58,125.82
  4. Step 4: Simplify right side
    100,575.48x = 8,066,628,642.33
  5. Step 5: Solve for x
    x = 8,066,628,642.33/100,575.48
  6. Step 6: Final answer
    x = 80,204.72

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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.