Home / 666,738.40-1,000,107.60-168,102.40

Finding the Fourth Proportional to 666,738.40, 1,000,107.60 and 168,102.40

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Solution

The fourth proportional to 666,738.40, 1,000,107.60 and 168,102.40 is: 252,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,738.40 : 1,000,107.60 = 168,102.40 : x
  2. Step 2: Convert to fraction form
    666,738.40/1,000,107.60 = 168,102.40/x
  3. Step 3: Cross multiply
    666,738.40x = 1,000,107.60 × 168,102.40
  4. Step 4: Simplify right side
    666,738.40x = 168,120,487,818.24
  5. Step 5: Solve for x
    x = 168,120,487,818.24/666,738.40
  6. Step 6: Final answer
    x = 252,153.60

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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.