Home / 120,816.76-181,225.84-40,855.30

Finding the Fourth Proportional to 120,816.76, 181,225.84 and 40,855.30

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Solution

The fourth proportional to 120,816.76, 181,225.84 and 40,855.30 is: 61,283.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,816.76 : 181,225.84 = 40,855.30 : x
  2. Step 2: Convert to fraction form
    120,816.76/181,225.84 = 40,855.30/x
  3. Step 3: Cross multiply
    120,816.76x = 181,225.84 × 40,855.30
  4. Step 4: Simplify right side
    120,816.76x = 7,404,035,306.88
  5. Step 5: Solve for x
    x = 7,404,035,306.88/120,816.76
  6. Step 6: Final answer
    x = 61,283.18

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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.