Home / 108,136.44-162,204.57-78,741.27

Finding the Fourth Proportional to 108,136.44, 162,204.57 and 78,741.27

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Solution

The fourth proportional to 108,136.44, 162,204.57 and 78,741.27 is: 118,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,136.44 : 162,204.57 = 78,741.27 : x
  2. Step 2: Convert to fraction form
    108,136.44/162,204.57 = 78,741.27/x
  3. Step 3: Cross multiply
    108,136.44x = 162,204.57 × 78,741.27
  4. Step 4: Simplify right side
    108,136.44x = 12,772,193,841.60
  5. Step 5: Solve for x
    x = 12,772,193,841.60/108,136.44
  6. Step 6: Final answer
    x = 118,111.84

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1.5x scale

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.