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Finding the Fourth Proportional to 151,904.40, 227,856.60 and 81,045.60

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Solution

The fourth proportional to 151,904.40, 227,856.60 and 81,045.60 is: 121,568.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,904.40 : 227,856.60 = 81,045.60 : x
  2. Step 2: Convert to fraction form
    151,904.40/227,856.60 = 81,045.60/x
  3. Step 3: Cross multiply
    151,904.40x = 227,856.60 × 81,045.60
  4. Step 4: Simplify right side
    151,904.40x = 18,466,774,860.96
  5. Step 5: Solve for x
    x = 18,466,774,860.96/151,904.40
  6. Step 6: Final answer
    x = 121,568.40

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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.