Home / 118,264-163,204.32-80,604.04

Finding the Fourth Proportional to 118,264, 163,204.32 and 80,604.04

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Solution

The fourth proportional to 118,264, 163,204.32 and 80,604.04 is: 111,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,264 : 163,204.32 = 80,604.04 : x
  2. Step 2: Convert to fraction form
    118,264/163,204.32 = 80,604.04/x
  3. Step 3: Cross multiply
    118,264x = 163,204.32 × 80,604.04
  4. Step 4: Simplify right side
    118,264x = 13,154,927,537.45
  5. Step 5: Solve for x
    x = 13,154,927,537.45/118,264
  6. Step 6: Final answer
    x = 111,233.58

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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.