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Finding the Fourth Proportional to 121,507.98, 182,240.94 and 54,932.64

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Solution

The fourth proportional to 121,507.98, 182,240.94 and 54,932.64 is: 82,389.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,507.98 : 182,240.94 = 54,932.64 : x
  2. Step 2: Convert to fraction form
    121,507.98/182,240.94 = 54,932.64/x
  3. Step 3: Cross multiply
    121,507.98x = 182,240.94 × 54,932.64
  4. Step 4: Simplify right side
    121,507.98x = 10,010,975,950.28
  5. Step 5: Solve for x
    x = 10,010,975,950.28/121,507.98
  6. Step 6: Final answer
    x = 82,389.45

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1.5x scale

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.