Home / 134,542.72-185,669.10-77,986.96

Finding the Fourth Proportional to 134,542.72, 185,669.10 and 77,986.96

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Solution

The fourth proportional to 134,542.72, 185,669.10 and 77,986.96 is: 107,622.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,542.72 : 185,669.10 = 77,986.96 : x
  2. Step 2: Convert to fraction form
    134,542.72/185,669.10 = 77,986.96/x
  3. Step 3: Cross multiply
    134,542.72x = 185,669.10 × 77,986.96
  4. Step 4: Simplify right side
    134,542.72x = 14,479,768,674.94
  5. Step 5: Solve for x
    x = 14,479,768,674.94/134,542.72
  6. Step 6: Final answer
    x = 107,622.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.