Home / 111,723.40-154,126.92-98,989.57

Finding the Fourth Proportional to 111,723.40, 154,126.92 and 98,989.57

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Solution

The fourth proportional to 111,723.40, 154,126.92 and 98,989.57 is: 136,560.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,723.40 : 154,126.92 = 98,989.57 : x
  2. Step 2: Convert to fraction form
    111,723.40/154,126.92 = 98,989.57/x
  3. Step 3: Cross multiply
    111,723.40x = 154,126.92 × 98,989.57
  4. Step 4: Simplify right side
    111,723.40x = 15,256,957,536.22
  5. Step 5: Solve for x
    x = 15,256,957,536.22/111,723.40
  6. Step 6: Final answer
    x = 136,560.09

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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.