Home / 120,669.18-181,064.07-54,156.84

Finding the Fourth Proportional to 120,669.18, 181,064.07 and 54,156.84

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Solution

The fourth proportional to 120,669.18, 181,064.07 and 54,156.84 is: 81,262.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,669.18 : 181,064.07 = 54,156.84 : x
  2. Step 2: Convert to fraction form
    120,669.18/181,064.07 = 54,156.84/x
  3. Step 3: Cross multiply
    120,669.18x = 181,064.07 × 54,156.84
  4. Step 4: Simplify right side
    120,669.18x = 9,805,857,868.74
  5. Step 5: Solve for x
    x = 9,805,857,868.74/120,669.18
  6. Step 6: Final answer
    x = 81,262.32

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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.