Home / 171,602.20-257,140.14-77,998.60

Finding the Fourth Proportional to 171,602.20, 257,140.14 and 77,998.60

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Solution

The fourth proportional to 171,602.20, 257,140.14 and 77,998.60 is: 116,878.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,602.20 : 257,140.14 = 77,998.60 : x
  2. Step 2: Convert to fraction form
    171,602.20/257,140.14 = 77,998.60/x
  3. Step 3: Cross multiply
    171,602.20x = 257,140.14 × 77,998.60
  4. Step 4: Simplify right side
    171,602.20x = 20,056,570,923.80
  5. Step 5: Solve for x
    x = 20,056,570,923.80/171,602.20
  6. Step 6: Final answer
    x = 116,878.29

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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.