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Finding the Fourth Proportional to 168,820.35, 253,230.52 and 68,980.45

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Solution

The fourth proportional to 168,820.35, 253,230.52 and 68,980.45 is: 103,470.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,820.35 : 253,230.52 = 68,980.45 : x
  2. Step 2: Convert to fraction form
    168,820.35/253,230.52 = 68,980.45/x
  3. Step 3: Cross multiply
    168,820.35x = 253,230.52 × 68,980.45
  4. Step 4: Simplify right side
    168,820.35x = 17,467,955,223.33
  5. Step 5: Solve for x
    x = 17,467,955,223.33/168,820.35
  6. Step 6: Final answer
    x = 103,470.67

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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.