Home / 133,215.48-183,831.66-72,785.16

Finding the Fourth Proportional to 133,215.48, 183,831.66 and 72,785.16

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Solution

The fourth proportional to 133,215.48, 183,831.66 and 72,785.16 is: 100,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,215.48 : 183,831.66 = 72,785.16 : x
  2. Step 2: Convert to fraction form
    133,215.48/183,831.66 = 72,785.16/x
  3. Step 3: Cross multiply
    133,215.48x = 183,831.66 × 72,785.16
  4. Step 4: Simplify right side
    133,215.48x = 13,380,216,786.17
  5. Step 5: Solve for x
    x = 13,380,216,786.17/133,215.48
  6. Step 6: Final answer
    x = 100,440.41

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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.