Home / 180,213.52-270,431.45-91,530.67

Finding the Fourth Proportional to 180,213.52, 270,431.45 and 91,530.67

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Solution

The fourth proportional to 180,213.52, 270,431.45 and 91,530.67 is: 137,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,213.52 : 270,431.45 = 91,530.67 : x
  2. Step 2: Convert to fraction form
    180,213.52/270,431.45 = 91,530.67/x
  3. Step 3: Cross multiply
    180,213.52x = 270,431.45 × 91,530.67
  4. Step 4: Simplify right side
    180,213.52x = 24,752,771,807.57
  5. Step 5: Solve for x
    x = 24,752,771,807.57/180,213.52
  6. Step 6: Final answer
    x = 137,352.47

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1.5x scale

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.