Home / 151,370.20-227,055.30-81,213.40

Finding the Fourth Proportional to 151,370.20, 227,055.30 and 81,213.40

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Solution

The fourth proportional to 151,370.20, 227,055.30 and 81,213.40 is: 121,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,370.20 : 227,055.30 = 81,213.40 : x
  2. Step 2: Convert to fraction form
    151,370.20/227,055.30 = 81,213.40/x
  3. Step 3: Cross multiply
    151,370.20x = 227,055.30 × 81,213.40
  4. Step 4: Simplify right side
    151,370.20x = 18,439,932,901.02
  5. Step 5: Solve for x
    x = 18,439,932,901.02/151,370.20
  6. Step 6: Final answer
    x = 121,820.10

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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.