Home / 133,424.29-199,938.39-74,178.46

Finding the Fourth Proportional to 133,424.29, 199,938.39 and 74,178.46

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Solution

The fourth proportional to 133,424.29, 199,938.39 and 74,178.46 is: 111,157.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,424.29 : 199,938.39 = 74,178.46 : x
  2. Step 2: Convert to fraction form
    133,424.29/199,938.39 = 74,178.46/x
  3. Step 3: Cross multiply
    133,424.29x = 199,938.39 × 74,178.46
  4. Step 4: Simplify right side
    133,424.29x = 14,831,121,865.08
  5. Step 5: Solve for x
    x = 14,831,121,865.08/133,424.29
  6. Step 6: Final answer
    x = 111,157.59

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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.