Home / 131,716.80-197,575.20-84,477.60

Finding the Fourth Proportional to 131,716.80, 197,575.20 and 84,477.60

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Solution

The fourth proportional to 131,716.80, 197,575.20 and 84,477.60 is: 126,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,716.80 : 197,575.20 = 84,477.60 : x
  2. Step 2: Convert to fraction form
    131,716.80/197,575.20 = 84,477.60/x
  3. Step 3: Cross multiply
    131,716.80x = 197,575.20 × 84,477.60
  4. Step 4: Simplify right side
    131,716.80x = 16,690,678,715.52
  5. Step 5: Solve for x
    x = 16,690,678,715.52/131,716.80
  6. Step 6: Final answer
    x = 126,716.40

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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.