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Finding the Fourth Proportional to 117,011.78, 161,476.08 and 63,296.63

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Solution

The fourth proportional to 117,011.78, 161,476.08 and 63,296.63 is: 87,349.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,011.78 : 161,476.08 = 63,296.63 : x
  2. Step 2: Convert to fraction form
    117,011.78/161,476.08 = 63,296.63/x
  3. Step 3: Cross multiply
    117,011.78x = 161,476.08 × 63,296.63
  4. Step 4: Simplify right side
    117,011.78x = 10,220,891,855.94
  5. Step 5: Solve for x
    x = 10,220,891,855.94/117,011.78
  6. Step 6: Final answer
    x = 87,349.25

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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.