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Finding the Fourth Proportional to 155,689.56, 214,852.86 and 88,625.88

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Solution

The fourth proportional to 155,689.56, 214,852.86 and 88,625.88 is: 122,304.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,689.56 : 214,852.86 = 88,625.88 : x
  2. Step 2: Convert to fraction form
    155,689.56/214,852.86 = 88,625.88/x
  3. Step 3: Cross multiply
    155,689.56x = 214,852.86 × 88,625.88
  4. Step 4: Simplify right side
    155,689.56x = 19,041,523,788.02
  5. Step 5: Solve for x
    x = 19,041,523,788.02/155,689.56
  6. Step 6: Final answer
    x = 122,304.44

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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.