Home / 115,136.10-172,727.44-48,576.38

Finding the Fourth Proportional to 115,136.10, 172,727.44 and 48,576.38

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Solution

The fourth proportional to 115,136.10, 172,727.44 and 48,576.38 is: 72,874.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,136.10 : 172,727.44 = 48,576.38 : x
  2. Step 2: Convert to fraction form
    115,136.10/172,727.44 = 48,576.38/x
  3. Step 3: Cross multiply
    115,136.10x = 172,727.44 × 48,576.38
  4. Step 4: Simplify right side
    115,136.10x = 8,390,473,761.87
  5. Step 5: Solve for x
    x = 8,390,473,761.87/115,136.10
  6. Step 6: Final answer
    x = 72,874.40

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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.