Home / 132,640.20-183,045.33-72,212.67

Finding the Fourth Proportional to 132,640.20, 183,045.33 and 72,212.67

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Solution

The fourth proportional to 132,640.20, 183,045.33 and 72,212.67 is: 99,654.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,640.20 : 183,045.33 = 72,212.67 : x
  2. Step 2: Convert to fraction form
    132,640.20/183,045.33 = 72,212.67/x
  3. Step 3: Cross multiply
    132,640.20x = 183,045.33 × 72,212.67
  4. Step 4: Simplify right side
    132,640.20x = 13,218,192,010.33
  5. Step 5: Solve for x
    x = 13,218,192,010.33/132,640.20
  6. Step 6: Final answer
    x = 99,654.49

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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.