Home / 151,971.59-228,023-81,836.93

Finding the Fourth Proportional to 151,971.59, 228,023 and 81,836.93

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Solution

The fourth proportional to 151,971.59, 228,023 and 81,836.93 is: 122,790.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,971.59 : 228,023 = 81,836.93 : x
  2. Step 2: Convert to fraction form
    151,971.59/228,023 = 81,836.93/x
  3. Step 3: Cross multiply
    151,971.59x = 228,023 × 81,836.93
  4. Step 4: Simplify right side
    151,971.59x = 18,660,702,289.39
  5. Step 5: Solve for x
    x = 18,660,702,289.39/151,971.59
  6. Step 6: Final answer
    x = 122,790.73

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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.