Home / 174,316.20-261,647.10-85,669.80

Finding the Fourth Proportional to 174,316.20, 261,647.10 and 85,669.80

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Solution

The fourth proportional to 174,316.20, 261,647.10 and 85,669.80 is: 128,589.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,316.20 : 261,647.10 = 85,669.80 : x
  2. Step 2: Convert to fraction form
    174,316.20/261,647.10 = 85,669.80/x
  3. Step 3: Cross multiply
    174,316.20x = 261,647.10 × 85,669.80
  4. Step 4: Simplify right side
    174,316.20x = 22,415,254,727.58
  5. Step 5: Solve for x
    x = 22,415,254,727.58/174,316.20
  6. Step 6: Final answer
    x = 128,589.62

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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.