Home / 119,740.80-179,611.20-89,997.60

Finding the Fourth Proportional to 119,740.80, 179,611.20 and 89,997.60

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Solution

The fourth proportional to 119,740.80, 179,611.20 and 89,997.60 is: 134,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,740.80 : 179,611.20 = 89,997.60 : x
  2. Step 2: Convert to fraction form
    119,740.80/179,611.20 = 89,997.60/x
  3. Step 3: Cross multiply
    119,740.80x = 179,611.20 × 89,997.60
  4. Step 4: Simplify right side
    119,740.80x = 16,164,576,933.12
  5. Step 5: Solve for x
    x = 16,164,576,933.12/119,740.80
  6. Step 6: Final answer
    x = 134,996.40

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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.