Home / 120,271.36-180,478.31-67,007.92

Finding the Fourth Proportional to 120,271.36, 180,478.31 and 67,007.92

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Solution

The fourth proportional to 120,271.36, 180,478.31 and 67,007.92 is: 100,551.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,271.36 : 180,478.31 = 67,007.92 : x
  2. Step 2: Convert to fraction form
    120,271.36/180,478.31 = 67,007.92/x
  3. Step 3: Cross multiply
    120,271.36x = 180,478.31 × 67,007.92
  4. Step 4: Simplify right side
    120,271.36x = 12,093,476,158.22
  5. Step 5: Solve for x
    x = 12,093,476,158.22/120,271.36
  6. Step 6: Final answer
    x = 100,551.59

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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.