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Finding the Fourth Proportional to 177,687.60, 245,208.90 and 97,115.10

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Solution

The fourth proportional to 177,687.60, 245,208.90 and 97,115.10 is: 134,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,687.60 : 245,208.90 = 97,115.10 : x
  2. Step 2: Convert to fraction form
    177,687.60/245,208.90 = 97,115.10/x
  3. Step 3: Cross multiply
    177,687.60x = 245,208.90 × 97,115.10
  4. Step 4: Simplify right side
    177,687.60x = 23,813,486,844.39
  5. Step 5: Solve for x
    x = 23,813,486,844.39/177,687.60
  6. Step 6: Final answer
    x = 134,018.84

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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.