Home / 130,742.43-196,113.77-91,376.43

Finding the Fourth Proportional to 130,742.43, 196,113.77 and 91,376.43

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Solution

The fourth proportional to 130,742.43, 196,113.77 and 91,376.43 is: 137,064.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,742.43 : 196,113.77 = 91,376.43 : x
  2. Step 2: Convert to fraction form
    130,742.43/196,113.77 = 91,376.43/x
  3. Step 3: Cross multiply
    130,742.43x = 196,113.77 × 91,376.43
  4. Step 4: Simplify right side
    130,742.43x = 17,920,175,719.56
  5. Step 5: Solve for x
    x = 17,920,175,719.56/130,742.43
  6. Step 6: Final answer
    x = 137,064.73

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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.