Home / 120,411.74-180,580.62-45,567.20

Finding the Fourth Proportional to 120,411.74, 180,580.62 and 45,567.20

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Solution

The fourth proportional to 120,411.74, 180,580.62 and 45,567.20 is: 68,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,411.74 : 180,580.62 = 45,567.20 : x
  2. Step 2: Convert to fraction form
    120,411.74/180,580.62 = 45,567.20/x
  3. Step 3: Cross multiply
    120,411.74x = 180,580.62 × 45,567.20
  4. Step 4: Simplify right side
    120,411.74x = 8,228,553,227.66
  5. Step 5: Solve for x
    x = 8,228,553,227.66/120,411.74
  6. Step 6: Final answer
    x = 68,336.80

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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.