Home / 112,106.57-154,705.88-61,119.16

Finding the Fourth Proportional to 112,106.57, 154,705.88 and 61,119.16

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Solution

The fourth proportional to 112,106.57, 154,705.88 and 61,119.16 is: 84,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,106.57 : 154,705.88 = 61,119.16 : x
  2. Step 2: Convert to fraction form
    112,106.57/154,705.88 = 61,119.16/x
  3. Step 3: Cross multiply
    112,106.57x = 154,705.88 × 61,119.16
  4. Step 4: Simplify right side
    112,106.57x = 9,455,493,198.69
  5. Step 5: Solve for x
    x = 9,455,493,198.69/112,106.57
  6. Step 6: Final answer
    x = 84,343.80

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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.