Home / 132,780.35-183,234.52-72,351.52

Finding the Fourth Proportional to 132,780.35, 183,234.52 and 72,351.52

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Solution

The fourth proportional to 132,780.35, 183,234.52 and 72,351.52 is: 99,843.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,780.35 : 183,234.52 = 72,351.52 : x
  2. Step 2: Convert to fraction form
    132,780.35/183,234.52 = 72,351.52/x
  3. Step 3: Cross multiply
    132,780.35x = 183,234.52 × 72,351.52
  4. Step 4: Simplify right side
    132,780.35x = 13,257,296,038.47
  5. Step 5: Solve for x
    x = 13,257,296,038.47/132,780.35
  6. Step 6: Final answer
    x = 99,843.81

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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.