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Finding the Fourth Proportional to 133,375.40, 199,998.30 and 74,148.20

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Solution

The fourth proportional to 133,375.40, 199,998.30 and 74,148.20 is: 111,186.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,375.40 : 199,998.30 = 74,148.20 : x
  2. Step 2: Convert to fraction form
    133,375.40/199,998.30 = 74,148.20/x
  3. Step 3: Cross multiply
    133,375.40x = 199,998.30 × 74,148.20
  4. Step 4: Simplify right side
    133,375.40x = 14,829,513,948.06
  5. Step 5: Solve for x
    x = 14,829,513,948.06/133,375.40
  6. Step 6: Final answer
    x = 111,186.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.