Home / 112,099.12-154,690.68-61,794.16

Finding the Fourth Proportional to 112,099.12, 154,690.68 and 61,794.16

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Solution

The fourth proportional to 112,099.12, 154,690.68 and 61,794.16 is: 85,272.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,099.12 : 154,690.68 = 61,794.16 : x
  2. Step 2: Convert to fraction form
    112,099.12/154,690.68 = 61,794.16/x
  3. Step 3: Cross multiply
    112,099.12x = 154,690.68 × 61,794.16
  4. Step 4: Simplify right side
    112,099.12x = 9,558,980,630.43
  5. Step 5: Solve for x
    x = 9,558,980,630.43/112,099.12
  6. Step 6: Final answer
    x = 85,272.58

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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.