Home / 112,124.25-154,551.04-81,861.64

Finding the Fourth Proportional to 112,124.25, 154,551.04 and 81,861.64

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Solution

The fourth proportional to 112,124.25, 154,551.04 and 81,861.64 is: 112,837.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,124.25 : 154,551.04 = 81,861.64 : x
  2. Step 2: Convert to fraction form
    112,124.25/154,551.04 = 81,861.64/x
  3. Step 3: Cross multiply
    112,124.25x = 154,551.04 × 81,861.64
  4. Step 4: Simplify right side
    112,124.25x = 12,651,801,007.07
  5. Step 5: Solve for x
    x = 12,651,801,007.07/112,124.25
  6. Step 6: Final answer
    x = 112,837.33

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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.