Home / 120,757.38-181,209.76-76,322.94

Finding the Fourth Proportional to 120,757.38, 181,209.76 and 76,322.94

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Solution

The fourth proportional to 120,757.38, 181,209.76 and 76,322.94 is: 114,530.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,757.38 : 181,209.76 = 76,322.94 : x
  2. Step 2: Convert to fraction form
    120,757.38/181,209.76 = 76,322.94/x
  3. Step 3: Cross multiply
    120,757.38x = 181,209.76 × 76,322.94
  4. Step 4: Simplify right side
    120,757.38x = 13,830,461,639.89
  5. Step 5: Solve for x
    x = 13,830,461,639.89/120,757.38
  6. Step 6: Final answer
    x = 114,530.98

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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.