Home / 120,621.60-180,796.91-56,611.17

Finding the Fourth Proportional to 120,621.60, 180,796.91 and 56,611.17

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Solution

The fourth proportional to 120,621.60, 180,796.91 and 56,611.17 is: 84,853.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,621.60 : 180,796.91 = 56,611.17 : x
  2. Step 2: Convert to fraction form
    120,621.60/180,796.91 = 56,611.17/x
  3. Step 3: Cross multiply
    120,621.60x = 180,796.91 × 56,611.17
  4. Step 4: Simplify right side
    120,621.60x = 10,235,124,324.43
  5. Step 5: Solve for x
    x = 10,235,124,324.43/120,621.60
  6. Step 6: Final answer
    x = 84,853.16

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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.