Home / 111,717.57-154,326.90-101,628.21

Finding the Fourth Proportional to 111,717.57, 154,326.90 and 101,628.21

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Solution

The fourth proportional to 111,717.57, 154,326.90 and 101,628.21 is: 140,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,717.57 : 154,326.90 = 101,628.21 : x
  2. Step 2: Convert to fraction form
    111,717.57/154,326.90 = 101,628.21/x
  3. Step 3: Cross multiply
    111,717.57x = 154,326.90 × 101,628.21
  4. Step 4: Simplify right side
    111,717.57x = 15,683,966,601.85
  5. Step 5: Solve for x
    x = 15,683,966,601.85/111,717.57
  6. Step 6: Final answer
    x = 140,389.44

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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.