Home / 142,083.04-213,129.96-47,321.68

Finding the Fourth Proportional to 142,083.04, 213,129.96 and 47,321.68

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Solution

The fourth proportional to 142,083.04, 213,129.96 and 47,321.68 is: 70,984.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,083.04 : 213,129.96 = 47,321.68 : x
  2. Step 2: Convert to fraction form
    142,083.04/213,129.96 = 47,321.68/x
  3. Step 3: Cross multiply
    142,083.04x = 213,129.96 × 47,321.68
  4. Step 4: Simplify right side
    142,083.04x = 10,085,667,765.53
  5. Step 5: Solve for x
    x = 10,085,667,765.53/142,083.04
  6. Step 6: Final answer
    x = 70,984.32

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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.