Home / 120,901.61-181,230.77-49,876.05

Finding the Fourth Proportional to 120,901.61, 181,230.77 and 49,876.05

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Solution

The fourth proportional to 120,901.61, 181,230.77 and 49,876.05 is: 74,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,901.61 : 181,230.77 = 49,876.05 : x
  2. Step 2: Convert to fraction form
    120,901.61/181,230.77 = 49,876.05/x
  3. Step 3: Cross multiply
    120,901.61x = 181,230.77 × 49,876.05
  4. Step 4: Simplify right side
    120,901.61x = 9,039,075,469.81
  5. Step 5: Solve for x
    x = 9,039,075,469.81/120,901.61
  6. Step 6: Final answer
    x = 74,763.90

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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.