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Finding the Fourth Proportional to 135,618.70, 187,164.90 and 75,208.29

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Solution

The fourth proportional to 135,618.70, 187,164.90 and 75,208.29 is: 103,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,618.70 : 187,164.90 = 75,208.29 : x
  2. Step 2: Convert to fraction form
    135,618.70/187,164.90 = 75,208.29/x
  3. Step 3: Cross multiply
    135,618.70x = 187,164.90 × 75,208.29
  4. Step 4: Simplify right side
    135,618.70x = 14,076,352,077.02
  5. Step 5: Solve for x
    x = 14,076,352,077.02/135,618.70
  6. Step 6: Final answer
    x = 103,793.59

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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.