Home / 120,432.80-180,576.30-53,860.52

Finding the Fourth Proportional to 120,432.80, 180,576.30 and 53,860.52

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Solution

The fourth proportional to 120,432.80, 180,576.30 and 53,860.52 is: 80,758.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,432.80 : 180,576.30 = 53,860.52 : x
  2. Step 2: Convert to fraction form
    120,432.80/180,576.30 = 53,860.52/x
  3. Step 3: Cross multiply
    120,432.80x = 180,576.30 × 53,860.52
  4. Step 4: Simplify right side
    120,432.80x = 9,725,933,417.68
  5. Step 5: Solve for x
    x = 9,725,933,417.68/120,432.80
  6. Step 6: Final answer
    x = 80,758.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.