Home / 120,315.71-180,514.58-36,077.94

Finding the Fourth Proportional to 120,315.71, 180,514.58 and 36,077.94

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Solution

The fourth proportional to 120,315.71, 180,514.58 and 36,077.94 is: 54,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,315.71 : 180,514.58 = 36,077.94 : x
  2. Step 2: Convert to fraction form
    120,315.71/180,514.58 = 36,077.94/x
  3. Step 3: Cross multiply
    120,315.71x = 180,514.58 × 36,077.94
  4. Step 4: Simplify right side
    120,315.71x = 6,512,594,005.98
  5. Step 5: Solve for x
    x = 6,512,594,005.98/120,315.71
  6. Step 6: Final answer
    x = 54,129.21

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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.