Home / 103,918.24-143,407.14-56,171.56

Finding the Fourth Proportional to 103,918.24, 143,407.14 and 56,171.56

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Solution

The fourth proportional to 103,918.24, 143,407.14 and 56,171.56 is: 77,516.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,918.24 : 143,407.14 = 56,171.56 : x
  2. Step 2: Convert to fraction form
    103,918.24/143,407.14 = 56,171.56/x
  3. Step 3: Cross multiply
    103,918.24x = 143,407.14 × 56,171.56
  4. Step 4: Simplify right side
    103,918.24x = 8,055,402,768.94
  5. Step 5: Solve for x
    x = 8,055,402,768.94/103,918.24
  6. Step 6: Final answer
    x = 77,516.74

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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.