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Finding the Fourth Proportional to 104,175, 143,764.32 and 63,865.56

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Solution

The fourth proportional to 104,175, 143,764.32 and 63,865.56 is: 88,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,175 : 143,764.32 = 63,865.56 : x
  2. Step 2: Convert to fraction form
    104,175/143,764.32 = 63,865.56/x
  3. Step 3: Cross multiply
    104,175x = 143,764.32 × 63,865.56
  4. Step 4: Simplify right side
    104,175x = 9,181,588,804.82
  5. Step 5: Solve for x
    x = 9,181,588,804.82/104,175
  6. Step 6: Final answer
    x = 88,136.20

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1.5x scale

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.