Home / 174,561.80-261,669.90-85,742.60

Finding the Fourth Proportional to 174,561.80, 261,669.90 and 85,742.60

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Solution

The fourth proportional to 174,561.80, 261,669.90 and 85,742.60 is: 128,529.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,561.80 : 261,669.90 = 85,742.60 : x
  2. Step 2: Convert to fraction form
    174,561.80/261,669.90 = 85,742.60/x
  3. Step 3: Cross multiply
    174,561.80x = 261,669.90 × 85,742.60
  4. Step 4: Simplify right side
    174,561.80x = 22,436,257,567.74
  5. Step 5: Solve for x
    x = 22,436,257,567.74/174,561.80
  6. Step 6: Final answer
    x = 128,529.02

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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.