Home / 104,136.11-143,707.91-56,389.50

Finding the Fourth Proportional to 104,136.11, 143,707.91 and 56,389.50

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Solution

The fourth proportional to 104,136.11, 143,707.91 and 56,389.50 is: 77,817.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,136.11 : 143,707.91 = 56,389.50 : x
  2. Step 2: Convert to fraction form
    104,136.11/143,707.91 = 56,389.50/x
  3. Step 3: Cross multiply
    104,136.11x = 143,707.91 × 56,389.50
  4. Step 4: Simplify right side
    104,136.11x = 8,103,617,190.95
  5. Step 5: Solve for x
    x = 8,103,617,190.95/104,136.11
  6. Step 6: Final answer
    x = 77,817.55

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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.