Home / 131,980.62-182,066.41-83,501.20

Finding the Fourth Proportional to 131,980.62, 182,066.41 and 83,501.20

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Solution

The fourth proportional to 131,980.62, 182,066.41 and 83,501.20 is: 115,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,980.62 : 182,066.41 = 83,501.20 : x
  2. Step 2: Convert to fraction form
    131,980.62/182,066.41 = 83,501.20/x
  3. Step 3: Cross multiply
    131,980.62x = 182,066.41 × 83,501.20
  4. Step 4: Simplify right side
    131,980.62x = 15,202,763,714.69
  5. Step 5: Solve for x
    x = 15,202,763,714.69/131,980.62
  6. Step 6: Final answer
    x = 115,189.36

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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.