Home / 120,962.94-181,448.51-42,077.85

Finding the Fourth Proportional to 120,962.94, 181,448.51 and 42,077.85

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Solution

The fourth proportional to 120,962.94, 181,448.51 and 42,077.85 is: 63,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,962.94 : 181,448.51 = 42,077.85 : x
  2. Step 2: Convert to fraction form
    120,962.94/181,448.51 = 42,077.85/x
  3. Step 3: Cross multiply
    120,962.94x = 181,448.51 × 42,077.85
  4. Step 4: Simplify right side
    120,962.94x = 7,634,962,976.11
  5. Step 5: Solve for x
    x = 7,634,962,976.11/120,962.94
  6. Step 6: Final answer
    x = 63,118.20

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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.