Home / 120,253.21-180,240.39-45,325.37

Finding the Fourth Proportional to 120,253.21, 180,240.39 and 45,325.37

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Solution

The fourth proportional to 120,253.21, 180,240.39 and 45,325.37 is: 67,935.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,253.21 : 180,240.39 = 45,325.37 : x
  2. Step 2: Convert to fraction form
    120,253.21/180,240.39 = 45,325.37/x
  3. Step 3: Cross multiply
    120,253.21x = 180,240.39 × 45,325.37
  4. Step 4: Simplify right side
    120,253.21x = 8,169,462,816.30
  5. Step 5: Solve for x
    x = 8,169,462,816.30/120,253.21
  6. Step 6: Final answer
    x = 67,935.51

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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.