Home / 120,426.52-180,639.80-50,267.56

Finding the Fourth Proportional to 120,426.52, 180,639.80 and 50,267.56

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Solution

The fourth proportional to 120,426.52, 180,639.80 and 50,267.56 is: 75,401.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,426.52 : 180,639.80 = 50,267.56 : x
  2. Step 2: Convert to fraction form
    120,426.52/180,639.80 = 50,267.56/x
  3. Step 3: Cross multiply
    120,426.52x = 180,639.80 × 50,267.56
  4. Step 4: Simplify right side
    120,426.52x = 9,080,321,984.89
  5. Step 5: Solve for x
    x = 9,080,321,984.89/120,426.52
  6. Step 6: Final answer
    x = 75,401.35

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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.