Home / 131,176.62-181,022.90-74,588

Finding the Fourth Proportional to 131,176.62, 181,022.90 and 74,588

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Solution

The fourth proportional to 131,176.62, 181,022.90 and 74,588 is: 102,930.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,176.62 : 181,022.90 = 74,588 : x
  2. Step 2: Convert to fraction form
    131,176.62/181,022.90 = 74,588/x
  3. Step 3: Cross multiply
    131,176.62x = 181,022.90 × 74,588
  4. Step 4: Simplify right side
    131,176.62x = 13,502,136,065.20
  5. Step 5: Solve for x
    x = 13,502,136,065.20/131,176.62
  6. Step 6: Final answer
    x = 102,930.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.