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Finding the Fourth Proportional to 117,678.63, 162,397.50 and 63,963.64

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Solution

The fourth proportional to 117,678.63, 162,397.50 and 63,963.64 is: 88,270.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,678.63 : 162,397.50 = 63,963.64 : x
  2. Step 2: Convert to fraction form
    117,678.63/162,397.50 = 63,963.64/x
  3. Step 3: Cross multiply
    117,678.63x = 162,397.50 × 63,963.64
  4. Step 4: Simplify right side
    117,678.63x = 10,387,535,190.03
  5. Step 5: Solve for x
    x = 10,387,535,190.03/117,678.63
  6. Step 6: Final answer
    x = 88,270.36

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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.