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Finding the Fourth Proportional to 151,773.81, 227,621.03 and 45,129.05

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Solution

The fourth proportional to 151,773.81, 227,621.03 and 45,129.05 is: 67,681.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,773.81 : 227,621.03 = 45,129.05 : x
  2. Step 2: Convert to fraction form
    151,773.81/227,621.03 = 45,129.05/x
  3. Step 3: Cross multiply
    151,773.81x = 227,621.03 × 45,129.05
  4. Step 4: Simplify right side
    151,773.81x = 10,272,319,649.41
  5. Step 5: Solve for x
    x = 10,272,319,649.41/151,773.81
  6. Step 6: Final answer
    x = 67,681.77

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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.