Home / 124,943.78-187,431.28-40,712.48

Finding the Fourth Proportional to 124,943.78, 187,431.28 and 40,712.48

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Solution

The fourth proportional to 124,943.78, 187,431.28 and 40,712.48 is: 61,073.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,943.78 : 187,431.28 = 40,712.48 : x
  2. Step 2: Convert to fraction form
    124,943.78/187,431.28 = 40,712.48/x
  3. Step 3: Cross multiply
    124,943.78x = 187,431.28 × 40,712.48
  4. Step 4: Simplify right side
    124,943.78x = 7,630,792,238.37
  5. Step 5: Solve for x
    x = 7,630,792,238.37/124,943.78
  6. Step 6: Final answer
    x = 61,073.81

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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.