Home / 124,998.57-172,318.73-89,126.37

Finding the Fourth Proportional to 124,998.57, 172,318.73 and 89,126.37

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Solution

The fourth proportional to 124,998.57, 172,318.73 and 89,126.37 is: 122,866.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,998.57 : 172,318.73 = 89,126.37 : x
  2. Step 2: Convert to fraction form
    124,998.57/172,318.73 = 89,126.37/x
  3. Step 3: Cross multiply
    124,998.57x = 172,318.73 × 89,126.37
  4. Step 4: Simplify right side
    124,998.57x = 15,358,142,442.28
  5. Step 5: Solve for x
    x = 15,358,142,442.28/124,998.57
  6. Step 6: Final answer
    x = 122,866.55

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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.