Home / 121,204.74-181,850.82-42,330.60

Finding the Fourth Proportional to 121,204.74, 181,850.82 and 42,330.60

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Solution

The fourth proportional to 121,204.74, 181,850.82 and 42,330.60 is: 63,511.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,204.74 : 181,850.82 = 42,330.60 : x
  2. Step 2: Convert to fraction form
    121,204.74/181,850.82 = 42,330.60/x
  3. Step 3: Cross multiply
    121,204.74x = 181,850.82 × 42,330.60
  4. Step 4: Simplify right side
    121,204.74x = 7,697,854,321.09
  5. Step 5: Solve for x
    x = 7,697,854,321.09/121,204.74
  6. Step 6: Final answer
    x = 63,511.17

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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.