Home / 120,631.66-180,948.78-36,392.54

Finding the Fourth Proportional to 120,631.66, 180,948.78 and 36,392.54

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Solution

The fourth proportional to 120,631.66, 180,948.78 and 36,392.54 is: 54,589.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,631.66 : 180,948.78 = 36,392.54 : x
  2. Step 2: Convert to fraction form
    120,631.66/180,948.78 = 36,392.54/x
  3. Step 3: Cross multiply
    120,631.66x = 180,948.78 × 36,392.54
  4. Step 4: Simplify right side
    120,631.66x = 6,585,184,809.36
  5. Step 5: Solve for x
    x = 6,585,184,809.36/120,631.66
  6. Step 6: Final answer
    x = 54,589.19

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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.