Home / 104,426.36-144,108-56,679.70

Finding the Fourth Proportional to 104,426.36, 144,108 and 56,679.70

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Solution

The fourth proportional to 104,426.36, 144,108 and 56,679.70 is: 78,217.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,426.36 : 144,108 = 56,679.70 : x
  2. Step 2: Convert to fraction form
    104,426.36/144,108 = 56,679.70/x
  3. Step 3: Cross multiply
    104,426.36x = 144,108 × 56,679.70
  4. Step 4: Simplify right side
    104,426.36x = 8,167,998,207.60
  5. Step 5: Solve for x
    x = 8,167,998,207.60/104,426.36
  6. Step 6: Final answer
    x = 78,217.78

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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.