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Finding the Fourth Proportional to 118,127.52, 163,009.80 and 67,133.43

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Solution

The fourth proportional to 118,127.52, 163,009.80 and 67,133.43 is: 92,640.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,127.52 : 163,009.80 = 67,133.43 : x
  2. Step 2: Convert to fraction form
    118,127.52/163,009.80 = 67,133.43/x
  3. Step 3: Cross multiply
    118,127.52x = 163,009.80 × 67,133.43
  4. Step 4: Simplify right side
    118,127.52x = 10,943,406,997.61
  5. Step 5: Solve for x
    x = 10,943,406,997.61/118,127.52
  6. Step 6: Final answer
    x = 92,640.62

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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.