Home / 143,515.02-215,318.66-43,694.54

Finding the Fourth Proportional to 143,515.02, 215,318.66 and 43,694.54

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Solution

The fourth proportional to 143,515.02, 215,318.66 and 43,694.54 is: 65,555.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,515.02 : 215,318.66 = 43,694.54 : x
  2. Step 2: Convert to fraction form
    143,515.02/215,318.66 = 43,694.54/x
  3. Step 3: Cross multiply
    143,515.02x = 215,318.66 × 43,694.54
  4. Step 4: Simplify right side
    143,515.02x = 9,408,249,802.12
  5. Step 5: Solve for x
    x = 9,408,249,802.12/143,515.02
  6. Step 6: Final answer
    x = 65,555.85

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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.