Home / 132,780.05-183,234.08-72,351.12

Finding the Fourth Proportional to 132,780.05, 183,234.08 and 72,351.12

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Solution

The fourth proportional to 132,780.05, 183,234.08 and 72,351.12 is: 99,843.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,780.05 : 183,234.08 = 72,351.12 : x
  2. Step 2: Convert to fraction form
    132,780.05/183,234.08 = 72,351.12/x
  3. Step 3: Cross multiply
    132,780.05x = 183,234.08 × 72,351.12
  4. Step 4: Simplify right side
    132,780.05x = 13,257,190,232.14
  5. Step 5: Solve for x
    x = 13,257,190,232.14/132,780.05
  6. Step 6: Final answer
    x = 99,843.24

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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.