Home / 108,136.89-162,103.28-52,008.75

Finding the Fourth Proportional to 108,136.89, 162,103.28 and 52,008.75

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Solution

The fourth proportional to 108,136.89, 162,103.28 and 52,008.75 is: 77,964.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,136.89 : 162,103.28 = 52,008.75 : x
  2. Step 2: Convert to fraction form
    108,136.89/162,103.28 = 52,008.75/x
  3. Step 3: Cross multiply
    108,136.89x = 162,103.28 × 52,008.75
  4. Step 4: Simplify right side
    108,136.89x = 8,430,788,703.66
  5. Step 5: Solve for x
    x = 8,430,788,703.66/108,136.89
  6. Step 6: Final answer
    x = 77,964.04

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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.