Home / 118,831.36-178,286.75-38,872.98

Finding the Fourth Proportional to 118,831.36, 178,286.75 and 38,872.98

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Solution

The fourth proportional to 118,831.36, 178,286.75 and 38,872.98 is: 58,322.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,831.36 : 178,286.75 = 38,872.98 : x
  2. Step 2: Convert to fraction form
    118,831.36/178,286.75 = 38,872.98/x
  3. Step 3: Cross multiply
    118,831.36x = 178,286.75 × 38,872.98
  4. Step 4: Simplify right side
    118,831.36x = 6,930,537,267.02
  5. Step 5: Solve for x
    x = 6,930,537,267.02/118,831.36
  6. Step 6: Final answer
    x = 58,322.46

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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.