Home / 104,135.11-143,706.53-56,388.50

Finding the Fourth Proportional to 104,135.11, 143,706.53 and 56,388.50

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Solution

The fourth proportional to 104,135.11, 143,706.53 and 56,388.50 is: 77,816.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,135.11 : 143,706.53 = 56,388.50 : x
  2. Step 2: Convert to fraction form
    104,135.11/143,706.53 = 56,388.50/x
  3. Step 3: Cross multiply
    104,135.11x = 143,706.53 × 56,388.50
  4. Step 4: Simplify right side
    104,135.11x = 8,103,394,666.43
  5. Step 5: Solve for x
    x = 8,103,394,666.43/104,135.11
  6. Step 6: Final answer
    x = 77,816.16

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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.