Home / 111,792.36-154,337.22-74,117.64

Finding the Fourth Proportional to 111,792.36, 154,337.22 and 74,117.64

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Solution

The fourth proportional to 111,792.36, 154,337.22 and 74,117.64 is: 102,324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,792.36 : 154,337.22 = 74,117.64 : x
  2. Step 2: Convert to fraction form
    111,792.36/154,337.22 = 74,117.64/x
  3. Step 3: Cross multiply
    111,792.36x = 154,337.22 × 74,117.64
  4. Step 4: Simplify right side
    111,792.36x = 11,439,110,510.56
  5. Step 5: Solve for x
    x = 11,439,110,510.56/111,792.36
  6. Step 6: Final answer
    x = 102,324.62

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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.