Home / 125,625.33-173,189.75-100,217.93

Finding the Fourth Proportional to 125,625.33, 173,189.75 and 100,217.93

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Solution

The fourth proportional to 125,625.33, 173,189.75 and 100,217.93 is: 138,162.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,625.33 : 173,189.75 = 100,217.93 : x
  2. Step 2: Convert to fraction form
    125,625.33/173,189.75 = 100,217.93/x
  3. Step 3: Cross multiply
    125,625.33x = 173,189.75 × 100,217.93
  4. Step 4: Simplify right side
    125,625.33x = 17,356,716,875.18
  5. Step 5: Solve for x
    x = 17,356,716,875.18/125,625.33
  6. Step 6: Final answer
    x = 138,162.56

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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.