Home / 120,338.56-180,535.53-40,387.14

Finding the Fourth Proportional to 120,338.56, 180,535.53 and 40,387.14

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Solution

The fourth proportional to 120,338.56, 180,535.53 and 40,387.14 is: 60,590.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,338.56 : 180,535.53 = 40,387.14 : x
  2. Step 2: Convert to fraction form
    120,338.56/180,535.53 = 40,387.14/x
  3. Step 3: Cross multiply
    120,338.56x = 180,535.53 × 40,387.14
  4. Step 4: Simplify right side
    120,338.56x = 7,291,313,725.08
  5. Step 5: Solve for x
    x = 7,291,313,725.08/120,338.56
  6. Step 6: Final answer
    x = 60,590.00

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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.