Home / 151,431.72-227,288.28-76,604.76

Finding the Fourth Proportional to 151,431.72, 227,288.28 and 76,604.76

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Solution

The fourth proportional to 151,431.72, 227,288.28 and 76,604.76 is: 114,978.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,431.72 : 227,288.28 = 76,604.76 : x
  2. Step 2: Convert to fraction form
    151,431.72/227,288.28 = 76,604.76/x
  3. Step 3: Cross multiply
    151,431.72x = 227,288.28 × 76,604.76
  4. Step 4: Simplify right side
    151,431.72x = 17,411,364,140.21
  5. Step 5: Solve for x
    x = 17,411,364,140.21/151,431.72
  6. Step 6: Final answer
    x = 114,978.32

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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.