Home / 126,026.73-189,040.11-103,750.77

Finding the Fourth Proportional to 126,026.73, 189,040.11 and 103,750.77

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Solution

The fourth proportional to 126,026.73, 189,040.11 and 103,750.77 is: 155,626.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,026.73 : 189,040.11 = 103,750.77 : x
  2. Step 2: Convert to fraction form
    126,026.73/189,040.11 = 103,750.77/x
  3. Step 3: Cross multiply
    126,026.73x = 189,040.11 × 103,750.77
  4. Step 4: Simplify right side
    126,026.73x = 19,613,056,973.38
  5. Step 5: Solve for x
    x = 19,613,056,973.38/126,026.73
  6. Step 6: Final answer
    x = 155,626.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.