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Finding the Fourth Proportional to 173,879.20, 261,135.60 and 103,895.20

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Solution

The fourth proportional to 173,879.20, 261,135.60 and 103,895.20 is: 156,032.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,879.20 : 261,135.60 = 103,895.20 : x
  2. Step 2: Convert to fraction form
    173,879.20/261,135.60 = 103,895.20/x
  3. Step 3: Cross multiply
    173,879.20x = 261,135.60 × 103,895.20
  4. Step 4: Simplify right side
    173,879.20x = 27,130,735,389.12
  5. Step 5: Solve for x
    x = 27,130,735,389.12/173,879.20
  6. Step 6: Final answer
    x = 156,032.09

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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.