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Finding the Fourth Proportional to 145,752.52, 218,650.38 and 45,921.64

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Solution

The fourth proportional to 145,752.52, 218,650.38 and 45,921.64 is: 68,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,752.52 : 218,650.38 = 45,921.64 : x
  2. Step 2: Convert to fraction form
    145,752.52/218,650.38 = 45,921.64/x
  3. Step 3: Cross multiply
    145,752.52x = 218,650.38 × 45,921.64
  4. Step 4: Simplify right side
    145,752.52x = 10,040,784,036.22
  5. Step 5: Solve for x
    x = 10,040,784,036.22/145,752.52
  6. Step 6: Final answer
    x = 68,889.27

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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.