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Finding the Fourth Proportional to 151,703.60, 227,555.40 and 81,719.60

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Solution

The fourth proportional to 151,703.60, 227,555.40 and 81,719.60 is: 122,579.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,703.60 : 227,555.40 = 81,719.60 : x
  2. Step 2: Convert to fraction form
    151,703.60/227,555.40 = 81,719.60/x
  3. Step 3: Cross multiply
    151,703.60x = 227,555.40 × 81,719.60
  4. Step 4: Simplify right side
    151,703.60x = 18,595,736,265.84
  5. Step 5: Solve for x
    x = 18,595,736,265.84/151,703.60
  6. Step 6: Final answer
    x = 122,579.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.