Home / 121,137.94-181,705.26-42,251.86

Finding the Fourth Proportional to 121,137.94, 181,705.26 and 42,251.86

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Solution

The fourth proportional to 121,137.94, 181,705.26 and 42,251.86 is: 63,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,137.94 : 181,705.26 = 42,251.86 : x
  2. Step 2: Convert to fraction form
    121,137.94/181,705.26 = 42,251.86/x
  3. Step 3: Cross multiply
    121,137.94x = 181,705.26 × 42,251.86
  4. Step 4: Simplify right side
    121,137.94x = 7,677,385,206.78
  5. Step 5: Solve for x
    x = 7,677,385,206.78/121,137.94
  6. Step 6: Final answer
    x = 63,377.21

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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.