Home / 123,770.43-170,802.09-67,181.76

Finding the Fourth Proportional to 123,770.43, 170,802.09 and 67,181.76

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Solution

The fourth proportional to 123,770.43, 170,802.09 and 67,181.76 is: 92,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,770.43 : 170,802.09 = 67,181.76 : x
  2. Step 2: Convert to fraction form
    123,770.43/170,802.09 = 67,181.76/x
  3. Step 3: Cross multiply
    123,770.43x = 170,802.09 × 67,181.76
  4. Step 4: Simplify right side
    123,770.43x = 11,474,785,017.88
  5. Step 5: Solve for x
    x = 11,474,785,017.88/123,770.43
  6. Step 6: Final answer
    x = 92,710.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.