Home / 120,666.06-180,940.32-36,410.40

Finding the Fourth Proportional to 120,666.06, 180,940.32 and 36,410.40

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Solution

The fourth proportional to 120,666.06, 180,940.32 and 36,410.40 is: 54,597.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,666.06 : 180,940.32 = 36,410.40 : x
  2. Step 2: Convert to fraction form
    120,666.06/180,940.32 = 36,410.40/x
  3. Step 3: Cross multiply
    120,666.06x = 180,940.32 × 36,410.40
  4. Step 4: Simplify right side
    120,666.06x = 6,588,109,427.33
  5. Step 5: Solve for x
    x = 6,588,109,427.33/120,666.06
  6. Step 6: Final answer
    x = 54,597.87

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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.