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Finding the Fourth Proportional to 145,903.88, 218,879.24 and 61,664.88

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Solution

The fourth proportional to 145,903.88, 218,879.24 and 61,664.88 is: 92,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,903.88 : 218,879.24 = 61,664.88 : x
  2. Step 2: Convert to fraction form
    145,903.88/218,879.24 = 61,664.88/x
  3. Step 3: Cross multiply
    145,903.88x = 218,879.24 × 61,664.88
  4. Step 4: Simplify right side
    145,903.88x = 13,497,162,069.09
  5. Step 5: Solve for x
    x = 13,497,162,069.09/145,903.88
  6. Step 6: Final answer
    x = 92,507.22

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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.