Home / 111,908.36-154,434.12-61,607.36

Finding the Fourth Proportional to 111,908.36, 154,434.12 and 61,607.36

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Solution

The fourth proportional to 111,908.36, 154,434.12 and 61,607.36 is: 85,018.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,908.36 : 154,434.12 = 61,607.36 : x
  2. Step 2: Convert to fraction form
    111,908.36/154,434.12 = 61,607.36/x
  3. Step 3: Cross multiply
    111,908.36x = 154,434.12 × 61,607.36
  4. Step 4: Simplify right side
    111,908.36x = 9,514,278,427.12
  5. Step 5: Solve for x
    x = 9,514,278,427.12/111,908.36
  6. Step 6: Final answer
    x = 85,018.48

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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.