Home / 124,223.78-186,372.98-38,831.20

Finding the Fourth Proportional to 124,223.78, 186,372.98 and 38,831.20

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Solution

The fourth proportional to 124,223.78, 186,372.98 and 38,831.20 is: 58,258.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,223.78 : 186,372.98 = 38,831.20 : x
  2. Step 2: Convert to fraction form
    124,223.78/186,372.98 = 38,831.20/x
  3. Step 3: Cross multiply
    124,223.78x = 186,372.98 × 38,831.20
  4. Step 4: Simplify right side
    124,223.78x = 7,237,086,460.98
  5. Step 5: Solve for x
    x = 7,237,086,460.98/124,223.78
  6. Step 6: Final answer
    x = 58,258.46

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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.