Home / 138,082.46-190,551.98-77,653.09

Finding the Fourth Proportional to 138,082.46, 190,551.98 and 77,653.09

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Solution

The fourth proportional to 138,082.46, 190,551.98 and 77,653.09 is: 107,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,082.46 : 190,551.98 = 77,653.09 : x
  2. Step 2: Convert to fraction form
    138,082.46/190,551.98 = 77,653.09/x
  3. Step 3: Cross multiply
    138,082.46x = 190,551.98 × 77,653.09
  4. Step 4: Simplify right side
    138,082.46x = 14,796,950,052.62
  5. Step 5: Solve for x
    x = 14,796,950,052.62/138,082.46
  6. Step 6: Final answer
    x = 107,160.24

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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.