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Finding the Fourth Proportional to 121,767.79, 182,654.82 and 57,710.98

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Solution

The fourth proportional to 121,767.79, 182,654.82 and 57,710.98 is: 86,567.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,767.79 : 182,654.82 = 57,710.98 : x
  2. Step 2: Convert to fraction form
    121,767.79/182,654.82 = 57,710.98/x
  3. Step 3: Cross multiply
    121,767.79x = 182,654.82 × 57,710.98
  4. Step 4: Simplify right side
    121,767.79x = 10,541,189,054.55
  5. Step 5: Solve for x
    x = 10,541,189,054.55/121,767.79
  6. Step 6: Final answer
    x = 86,567.96

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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.