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Finding the Fourth Proportional to 145,235.64, 217,939.04 and 61,010.56

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Solution

The fourth proportional to 145,235.64, 217,939.04 and 61,010.56 is: 91,551.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,235.64 : 217,939.04 = 61,010.56 : x
  2. Step 2: Convert to fraction form
    145,235.64/217,939.04 = 61,010.56/x
  3. Step 3: Cross multiply
    145,235.64x = 217,939.04 × 61,010.56
  4. Step 4: Simplify right side
    145,235.64x = 13,296,582,876.26
  5. Step 5: Solve for x
    x = 13,296,582,876.26/145,235.64
  6. Step 6: Final answer
    x = 91,551.79

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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.