Home / 103,708.01-143,107.83-57,764.14

Finding the Fourth Proportional to 103,708.01, 143,107.83 and 57,764.14

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Solution

The fourth proportional to 103,708.01, 143,107.83 and 57,764.14 is: 79,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,708.01 : 143,107.83 = 57,764.14 : x
  2. Step 2: Convert to fraction form
    103,708.01/143,107.83 = 57,764.14/x
  3. Step 3: Cross multiply
    103,708.01x = 143,107.83 × 57,764.14
  4. Step 4: Simplify right side
    103,708.01x = 8,266,500,369.45
  5. Step 5: Solve for x
    x = 8,266,500,369.45/103,708.01
  6. Step 6: Final answer
    x = 79,709.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.