Home / 104,136.93-143,709.65-56,390.28

Finding the Fourth Proportional to 104,136.93, 143,709.65 and 56,390.28

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Solution

The fourth proportional to 104,136.93, 143,709.65 and 56,390.28 is: 77,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,136.93 : 143,709.65 = 56,390.28 : x
  2. Step 2: Convert to fraction form
    104,136.93/143,709.65 = 56,390.28/x
  3. Step 3: Cross multiply
    104,136.93x = 143,709.65 × 56,390.28
  4. Step 4: Simplify right side
    104,136.93x = 8,103,827,120.25
  5. Step 5: Solve for x
    x = 8,103,827,120.25/104,136.93
  6. Step 6: Final answer
    x = 77,818.96

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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.