Home / 125,040.81-172,636.82-111,588.96

Finding the Fourth Proportional to 125,040.81, 172,636.82 and 111,588.96

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Solution

The fourth proportional to 125,040.81, 172,636.82 and 111,588.96 is: 154,064.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,040.81 : 172,636.82 = 111,588.96 : x
  2. Step 2: Convert to fraction form
    125,040.81/172,636.82 = 111,588.96/x
  3. Step 3: Cross multiply
    125,040.81x = 172,636.82 × 111,588.96
  4. Step 4: Simplify right side
    125,040.81x = 19,264,363,201.51
  5. Step 5: Solve for x
    x = 19,264,363,201.51/125,040.81
  6. Step 6: Final answer
    x = 154,064.61

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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.