Home / 172,529.40-258,802.20-54,204.60

Finding the Fourth Proportional to 172,529.40, 258,802.20 and 54,204.60

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Solution

The fourth proportional to 172,529.40, 258,802.20 and 54,204.60 is: 81,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,529.40 : 258,802.20 = 54,204.60 : x
  2. Step 2: Convert to fraction form
    172,529.40/258,802.20 = 54,204.60/x
  3. Step 3: Cross multiply
    172,529.40x = 258,802.20 × 54,204.60
  4. Step 4: Simplify right side
    172,529.40x = 14,028,269,730.12
  5. Step 5: Solve for x
    x = 14,028,269,730.12/172,529.40
  6. Step 6: Final answer
    x = 81,309.44

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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.