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Finding the Fourth Proportional to 116,857.62, 161,263.47 and 63,142.62

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Solution

The fourth proportional to 116,857.62, 161,263.47 and 63,142.62 is: 87,136.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,857.62 : 161,263.47 = 63,142.62 : x
  2. Step 2: Convert to fraction form
    116,857.62/161,263.47 = 63,142.62/x
  3. Step 3: Cross multiply
    116,857.62x = 161,263.47 × 63,142.62
  4. Step 4: Simplify right side
    116,857.62x = 10,182,598,006.09
  5. Step 5: Solve for x
    x = 10,182,598,006.09/116,857.62
  6. Step 6: Final answer
    x = 87,136.79

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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.