Home / 121,180.98-181,772.79-42,295.50

Finding the Fourth Proportional to 121,180.98, 181,772.79 and 42,295.50

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Solution

The fourth proportional to 121,180.98, 181,772.79 and 42,295.50 is: 63,443.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,180.98 : 181,772.79 = 42,295.50 : x
  2. Step 2: Convert to fraction form
    121,180.98/181,772.79 = 42,295.50/x
  3. Step 3: Cross multiply
    121,180.98x = 181,772.79 × 42,295.50
  4. Step 4: Simplify right side
    121,180.98x = 7,688,171,039.45
  5. Step 5: Solve for x
    x = 7,688,171,039.45/121,180.98
  6. Step 6: Final answer
    x = 63,443.71

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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.