Home / 133,236.83-183,864.60-72,806.15

Finding the Fourth Proportional to 133,236.83, 183,864.60 and 72,806.15

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Solution

The fourth proportional to 133,236.83, 183,864.60 and 72,806.15 is: 100,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,236.83 : 183,864.60 = 72,806.15 : x
  2. Step 2: Convert to fraction form
    133,236.83/183,864.60 = 72,806.15/x
  3. Step 3: Cross multiply
    133,236.83x = 183,864.60 × 72,806.15
  4. Step 4: Simplify right side
    133,236.83x = 13,386,472,727.97
  5. Step 5: Solve for x
    x = 13,386,472,727.97/133,236.83
  6. Step 6: Final answer
    x = 100,471.27

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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.