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Finding the Fourth Proportional to 155,617, 214,761.06 and 88,548.84

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Solution

The fourth proportional to 155,617, 214,761.06 and 88,548.84 is: 122,202.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,617 : 214,761.06 = 88,548.84 : x
  2. Step 2: Convert to fraction form
    155,617/214,761.06 = 88,548.84/x
  3. Step 3: Cross multiply
    155,617x = 214,761.06 × 88,548.84
  4. Step 4: Simplify right side
    155,617x = 19,016,842,740.17
  5. Step 5: Solve for x
    x = 19,016,842,740.17/155,617
  6. Step 6: Final answer
    x = 122,202.86

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1.5x scale

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.