Home / 666,738.90-1,000,108.35-168,102.90

Finding the Fourth Proportional to 666,738.90, 1,000,108.35 and 168,102.90

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Solution

The fourth proportional to 666,738.90, 1,000,108.35 and 168,102.90 is: 252,154.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,738.90 : 1,000,108.35 = 168,102.90 : x
  2. Step 2: Convert to fraction form
    666,738.90/1,000,108.35 = 168,102.90/x
  3. Step 3: Cross multiply
    666,738.90x = 1,000,108.35 × 168,102.90
  4. Step 4: Simplify right side
    666,738.90x = 168,121,113,949.22
  5. Step 5: Solve for x
    x = 168,121,113,949.22/666,738.90
  6. Step 6: Final answer
    x = 252,154.35

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Similar ratio
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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.