Home / 124,362.81-186,542.83-74,456.85

Finding the Fourth Proportional to 124,362.81, 186,542.83 and 74,456.85

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Solution

The fourth proportional to 124,362.81, 186,542.83 and 74,456.85 is: 111,684.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,362.81 : 186,542.83 = 74,456.85 : x
  2. Step 2: Convert to fraction form
    124,362.81/186,542.83 = 74,456.85/x
  3. Step 3: Cross multiply
    124,362.81x = 186,542.83 × 74,456.85
  4. Step 4: Simplify right side
    124,362.81x = 13,889,391,511.89
  5. Step 5: Solve for x
    x = 13,889,391,511.89/124,362.81
  6. Step 6: Final answer
    x = 111,684.45

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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.