Home / 103,864.76-155,685.96-74,192.63

Finding the Fourth Proportional to 103,864.76, 155,685.96 and 74,192.63

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Solution

The fourth proportional to 103,864.76, 155,685.96 and 74,192.63 is: 111,209.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,864.76 : 155,685.96 = 74,192.63 : x
  2. Step 2: Convert to fraction form
    103,864.76/155,685.96 = 74,192.63/x
  3. Step 3: Cross multiply
    103,864.76x = 155,685.96 × 74,192.63
  4. Step 4: Simplify right side
    103,864.76x = 11,550,751,215.69
  5. Step 5: Solve for x
    x = 11,550,751,215.69/103,864.76
  6. Step 6: Final answer
    x = 111,209.54

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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.