Home / 108,129.78-162,136.35-41,586.66

Finding the Fourth Proportional to 108,129.78, 162,136.35 and 41,586.66

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Solution

The fourth proportional to 108,129.78, 162,136.35 and 41,586.66 is: 62,357.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,129.78 : 162,136.35 = 41,586.66 : x
  2. Step 2: Convert to fraction form
    108,129.78/162,136.35 = 41,586.66/x
  3. Step 3: Cross multiply
    108,129.78x = 162,136.35 × 41,586.66
  4. Step 4: Simplify right side
    108,129.78x = 6,742,709,261.09
  5. Step 5: Solve for x
    x = 6,742,709,261.09/108,129.78
  6. Step 6: Final answer
    x = 62,357.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.