Home / 111,977.17-154,528.47-61,676.17

Finding the Fourth Proportional to 111,977.17, 154,528.47 and 61,676.17

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Solution

The fourth proportional to 111,977.17, 154,528.47 and 61,676.17 is: 85,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,977.17 : 154,528.47 = 61,676.17 : x
  2. Step 2: Convert to fraction form
    111,977.17/154,528.47 = 61,676.17/x
  3. Step 3: Cross multiply
    111,977.17x = 154,528.47 × 61,676.17
  4. Step 4: Simplify right side
    111,977.17x = 9,530,723,799.24
  5. Step 5: Solve for x
    x = 9,530,723,799.24/111,977.17
  6. Step 6: Final answer
    x = 85,113.10

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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.