Home / 146,521.82-202,190.46-81,980.12

Finding the Fourth Proportional to 146,521.82, 202,190.46 and 81,980.12

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Solution

The fourth proportional to 146,521.82, 202,190.46 and 81,980.12 is: 113,127.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,521.82 : 202,190.46 = 81,980.12 : x
  2. Step 2: Convert to fraction form
    146,521.82/202,190.46 = 81,980.12/x
  3. Step 3: Cross multiply
    146,521.82x = 202,190.46 × 81,980.12
  4. Step 4: Simplify right side
    146,521.82x = 16,575,598,173.66
  5. Step 5: Solve for x
    x = 16,575,598,173.66/146,521.82
  6. Step 6: Final answer
    x = 113,127.17

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Double scale
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1.5x scale

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.