Home / 123,721.76-185,417.40-64,433.12

Finding the Fourth Proportional to 123,721.76, 185,417.40 and 64,433.12

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Solution

The fourth proportional to 123,721.76, 185,417.40 and 64,433.12 is: 96,563.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,721.76 : 185,417.40 = 64,433.12 : x
  2. Step 2: Convert to fraction form
    123,721.76/185,417.40 = 64,433.12/x
  3. Step 3: Cross multiply
    123,721.76x = 185,417.40 × 64,433.12
  4. Step 4: Simplify right side
    123,721.76x = 11,947,021,584.29
  5. Step 5: Solve for x
    x = 11,947,021,584.29/123,721.76
  6. Step 6: Final answer
    x = 96,563.62

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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.