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Finding the Fourth Proportional to 168,803.10, 253,204.65 and 84,822.30

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Solution

The fourth proportional to 168,803.10, 253,204.65 and 84,822.30 is: 127,233.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,803.10 : 253,204.65 = 84,822.30 : x
  2. Step 2: Convert to fraction form
    168,803.10/253,204.65 = 84,822.30/x
  3. Step 3: Cross multiply
    168,803.10x = 253,204.65 × 84,822.30
  4. Step 4: Simplify right side
    168,803.10x = 21,477,400,783.70
  5. Step 5: Solve for x
    x = 21,477,400,783.70/168,803.10
  6. Step 6: Final answer
    x = 127,233.45

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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.