Home / 120,475.10-180,583.05-45,566.30

Finding the Fourth Proportional to 120,475.10, 180,583.05 and 45,566.30

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Solution

The fourth proportional to 120,475.10, 180,583.05 and 45,566.30 is: 68,300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,475.10 : 180,583.05 = 45,566.30 : x
  2. Step 2: Convert to fraction form
    120,475.10/180,583.05 = 45,566.30/x
  3. Step 3: Cross multiply
    120,475.10x = 180,583.05 × 45,566.30
  4. Step 4: Simplify right side
    120,475.10x = 8,228,501,431.22
  5. Step 5: Solve for x
    x = 8,228,501,431.22/120,475.10
  6. Step 6: Final answer
    x = 68,300.43

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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.