Home / 112,120.16-154,706.64-66,792.56

Finding the Fourth Proportional to 112,120.16, 154,706.64 and 66,792.56

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Solution

The fourth proportional to 112,120.16, 154,706.64 and 66,792.56 is: 92,162.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,120.16 : 154,706.64 = 66,792.56 : x
  2. Step 2: Convert to fraction form
    112,120.16/154,706.64 = 66,792.56/x
  3. Step 3: Cross multiply
    112,120.16x = 154,706.64 × 66,792.56
  4. Step 4: Simplify right side
    112,120.16x = 10,333,252,534.60
  5. Step 5: Solve for x
    x = 10,333,252,534.60/112,120.16
  6. Step 6: Final answer
    x = 92,162.31

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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.