Home / 123,742.51-170,764.77-67,153.88

Finding the Fourth Proportional to 123,742.51, 170,764.77 and 67,153.88

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Solution

The fourth proportional to 123,742.51, 170,764.77 and 67,153.88 is: 92,672.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,742.51 : 170,764.77 = 67,153.88 : x
  2. Step 2: Convert to fraction form
    123,742.51/170,764.77 = 67,153.88/x
  3. Step 3: Cross multiply
    123,742.51x = 170,764.77 × 67,153.88
  4. Step 4: Simplify right side
    123,742.51x = 11,467,516,872.81
  5. Step 5: Solve for x
    x = 11,467,516,872.81/123,742.51
  6. Step 6: Final answer
    x = 92,672.41

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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.