Home / 123,742.74-170,764.96-67,154.12

Finding the Fourth Proportional to 123,742.74, 170,764.96 and 67,154.12

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Solution

The fourth proportional to 123,742.74, 170,764.96 and 67,154.12 is: 92,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,742.74 : 170,764.96 = 67,154.12 : x
  2. Step 2: Convert to fraction form
    123,742.74/170,764.96 = 67,154.12/x
  3. Step 3: Cross multiply
    123,742.74x = 170,764.96 × 67,154.12
  4. Step 4: Simplify right side
    123,742.74x = 11,467,570,615.64
  5. Step 5: Solve for x
    x = 11,467,570,615.64/123,742.74
  6. Step 6: Final answer
    x = 92,672.67

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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.