Home / 666,741.80-1,000,112.70-168,105.80

Finding the Fourth Proportional to 666,741.80, 1,000,112.70 and 168,105.80

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Solution

The fourth proportional to 666,741.80, 1,000,112.70 and 168,105.80 is: 252,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,741.80 : 1,000,112.70 = 168,105.80 : x
  2. Step 2: Convert to fraction form
    666,741.80/1,000,112.70 = 168,105.80/x
  3. Step 3: Cross multiply
    666,741.80x = 1,000,112.70 × 168,105.80
  4. Step 4: Simplify right side
    666,741.80x = 168,124,745,523.66
  5. Step 5: Solve for x
    x = 168,124,745,523.66/666,741.80
  6. Step 6: Final answer
    x = 252,158.70

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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.