Home / 108,128.47-162,227.41-51,972.65

Finding the Fourth Proportional to 108,128.47, 162,227.41 and 51,972.65

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Solution

The fourth proportional to 108,128.47, 162,227.41 and 51,972.65 is: 77,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,128.47 : 162,227.41 = 51,972.65 : x
  2. Step 2: Convert to fraction form
    108,128.47/162,227.41 = 51,972.65/x
  3. Step 3: Cross multiply
    108,128.47x = 162,227.41 × 51,972.65
  4. Step 4: Simplify right side
    108,128.47x = 8,431,388,400.34
  5. Step 5: Solve for x
    x = 8,431,388,400.34/108,128.47
  6. Step 6: Final answer
    x = 77,975.66

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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.