Home / 104,136.08-143,708.48-56,389.43

Finding the Fourth Proportional to 104,136.08, 143,708.48 and 56,389.43

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Solution

The fourth proportional to 104,136.08, 143,708.48 and 56,389.43 is: 77,817.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,136.08 : 143,708.48 = 56,389.43 : x
  2. Step 2: Convert to fraction form
    104,136.08/143,708.48 = 56,389.43/x
  3. Step 3: Cross multiply
    104,136.08x = 143,708.48 × 56,389.43
  4. Step 4: Simplify right side
    104,136.08x = 8,103,638,554.82
  5. Step 5: Solve for x
    x = 8,103,638,554.82/104,136.08
  6. Step 6: Final answer
    x = 77,817.78

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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.