Home / 143,424.14-215,127.98-54,686.60

Finding the Fourth Proportional to 143,424.14, 215,127.98 and 54,686.60

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Solution

The fourth proportional to 143,424.14, 215,127.98 and 54,686.60 is: 82,026.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,424.14 : 215,127.98 = 54,686.60 : x
  2. Step 2: Convert to fraction form
    143,424.14/215,127.98 = 54,686.60/x
  3. Step 3: Cross multiply
    143,424.14x = 215,127.98 × 54,686.60
  4. Step 4: Simplify right side
    143,424.14x = 11,764,617,791.07
  5. Step 5: Solve for x
    x = 11,764,617,791.07/143,424.14
  6. Step 6: Final answer
    x = 82,026.76

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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.