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Finding the Fourth Proportional to 153,385.54, 211,669.98 and 88,863.54

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Solution

The fourth proportional to 153,385.54, 211,669.98 and 88,863.54 is: 122,630.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,385.54 : 211,669.98 = 88,863.54 : x
  2. Step 2: Convert to fraction form
    153,385.54/211,669.98 = 88,863.54/x
  3. Step 3: Cross multiply
    153,385.54x = 211,669.98 × 88,863.54
  4. Step 4: Simplify right side
    153,385.54x = 18,809,743,734.53
  5. Step 5: Solve for x
    x = 18,809,743,734.53/153,385.54
  6. Step 6: Final answer
    x = 122,630.49

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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.