Home / 120,858.42-181,268.91-61,737.78

Finding the Fourth Proportional to 120,858.42, 181,268.91 and 61,737.78

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Solution

The fourth proportional to 120,858.42, 181,268.91 and 61,737.78 is: 92,597.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,858.42 : 181,268.91 = 61,737.78 : x
  2. Step 2: Convert to fraction form
    120,858.42/181,268.91 = 61,737.78/x
  3. Step 3: Cross multiply
    120,858.42x = 181,268.91 × 61,737.78
  4. Step 4: Simplify right side
    120,858.42x = 11,191,140,086.42
  5. Step 5: Solve for x
    x = 11,191,140,086.42/120,858.42
  6. Step 6: Final answer
    x = 92,597.11

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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.