Home / 103,929.43-155,896.19-47,754.21

Finding the Fourth Proportional to 103,929.43, 155,896.19 and 47,754.21

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Solution

The fourth proportional to 103,929.43, 155,896.19 and 47,754.21 is: 71,632.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,929.43 : 155,896.19 = 47,754.21 : x
  2. Step 2: Convert to fraction form
    103,929.43/155,896.19 = 47,754.21/x
  3. Step 3: Cross multiply
    103,929.43x = 155,896.19 × 47,754.21
  4. Step 4: Simplify right side
    103,929.43x = 7,444,699,312.08
  5. Step 5: Solve for x
    x = 7,444,699,312.08/103,929.43
  6. Step 6: Final answer
    x = 71,632.25

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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.