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Finding the Fourth Proportional to 123,777.80, 185,666.70 and 73,258.10

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Solution

The fourth proportional to 123,777.80, 185,666.70 and 73,258.10 is: 109,887.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,777.80 : 185,666.70 = 73,258.10 : x
  2. Step 2: Convert to fraction form
    123,777.80/185,666.70 = 73,258.10/x
  3. Step 3: Cross multiply
    123,777.80x = 185,666.70 × 73,258.10
  4. Step 4: Simplify right side
    123,777.80x = 13,601,589,675.27
  5. Step 5: Solve for x
    x = 13,601,589,675.27/123,777.80
  6. Step 6: Final answer
    x = 109,887.15

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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.