Home / 120,890.40-181,270.80-50,690.40

Finding the Fourth Proportional to 120,890.40, 181,270.80 and 50,690.40

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Solution

The fourth proportional to 120,890.40, 181,270.80 and 50,690.40 is: 76,008.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,890.40 : 181,270.80 = 50,690.40 : x
  2. Step 2: Convert to fraction form
    120,890.40/181,270.80 = 50,690.40/x
  3. Step 3: Cross multiply
    120,890.40x = 181,270.80 × 50,690.40
  4. Step 4: Simplify right side
    120,890.40x = 9,188,689,360.32
  5. Step 5: Solve for x
    x = 9,188,689,360.32/120,890.40
  6. Step 6: Final answer
    x = 76,008.43

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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.