Home / 120,647.17-180,966.22-36,405.11

Finding the Fourth Proportional to 120,647.17, 180,966.22 and 36,405.11

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Solution

The fourth proportional to 120,647.17, 180,966.22 and 36,405.11 is: 54,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,647.17 : 180,966.22 = 36,405.11 : x
  2. Step 2: Convert to fraction form
    120,647.17/180,966.22 = 36,405.11/x
  3. Step 3: Cross multiply
    120,647.17x = 180,966.22 × 36,405.11
  4. Step 4: Simplify right side
    120,647.17x = 6,588,095,506.79
  5. Step 5: Solve for x
    x = 6,588,095,506.79/120,647.17
  6. Step 6: Final answer
    x = 54,606.30

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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.