Home / 132,780.20-183,234.36-72,351.35

Finding the Fourth Proportional to 132,780.20, 183,234.36 and 72,351.35

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Solution

The fourth proportional to 132,780.20, 183,234.36 and 72,351.35 is: 99,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,780.20 : 183,234.36 = 72,351.35 : x
  2. Step 2: Convert to fraction form
    132,780.20/183,234.36 = 72,351.35/x
  3. Step 3: Cross multiply
    132,780.20x = 183,234.36 × 72,351.35
  4. Step 4: Simplify right side
    132,780.20x = 13,257,253,312.39
  5. Step 5: Solve for x
    x = 13,257,253,312.39/132,780.20
  6. Step 6: Final answer
    x = 99,843.60

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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.