Home / 111,972.03-154,521.39-61,671.03

Finding the Fourth Proportional to 111,972.03, 154,521.39 and 61,671.03

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Solution

The fourth proportional to 111,972.03, 154,521.39 and 61,671.03 is: 85,106.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,972.03 : 154,521.39 = 61,671.03 : x
  2. Step 2: Convert to fraction form
    111,972.03/154,521.39 = 61,671.03/x
  3. Step 3: Cross multiply
    111,972.03x = 154,521.39 × 61,671.03
  4. Step 4: Simplify right side
    111,972.03x = 9,529,492,930.14
  5. Step 5: Solve for x
    x = 9,529,492,930.14/111,972.03
  6. Step 6: Final answer
    x = 85,106.01

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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.