Home / 120,776.40-181,195.92-45,897.84

Finding the Fourth Proportional to 120,776.40, 181,195.92 and 45,897.84

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Solution

The fourth proportional to 120,776.40, 181,195.92 and 45,897.84 is: 68,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,776.40 : 181,195.92 = 45,897.84 : x
  2. Step 2: Convert to fraction form
    120,776.40/181,195.92 = 45,897.84/x
  3. Step 3: Cross multiply
    120,776.40x = 181,195.92 × 45,897.84
  4. Step 4: Simplify right side
    120,776.40x = 8,316,501,344.81
  5. Step 5: Solve for x
    x = 8,316,501,344.81/120,776.40
  6. Step 6: Final answer
    x = 68,858.66

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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.