Home / 174,002.60-261,003.90-85,429.10

Finding the Fourth Proportional to 174,002.60, 261,003.90 and 85,429.10

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Solution

The fourth proportional to 174,002.60, 261,003.90 and 85,429.10 is: 128,143.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,002.60 : 261,003.90 = 85,429.10 : x
  2. Step 2: Convert to fraction form
    174,002.60/261,003.90 = 85,429.10/x
  3. Step 3: Cross multiply
    174,002.60x = 261,003.90 × 85,429.10
  4. Step 4: Simplify right side
    174,002.60x = 22,297,328,273.49
  5. Step 5: Solve for x
    x = 22,297,328,273.49/174,002.60
  6. Step 6: Final answer
    x = 128,143.65

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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.