Home / 102,667.80-141,678.64-57,344.46

Finding the Fourth Proportional to 102,667.80, 141,678.64 and 57,344.46

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Solution

The fourth proportional to 102,667.80, 141,678.64 and 57,344.46 is: 79,133.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,667.80 : 141,678.64 = 57,344.46 : x
  2. Step 2: Convert to fraction form
    102,667.80/141,678.64 = 57,344.46/x
  3. Step 3: Cross multiply
    102,667.80x = 141,678.64 × 57,344.46
  4. Step 4: Simplify right side
    102,667.80x = 8,124,485,104.33
  5. Step 5: Solve for x
    x = 8,124,485,104.33/102,667.80
  6. Step 6: Final answer
    x = 79,133.72

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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.