Home / 111,854.10-154,358.70-61,553.10

Finding the Fourth Proportional to 111,854.10, 154,358.70 and 61,553.10

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Solution

The fourth proportional to 111,854.10, 154,358.70 and 61,553.10 is: 84,943.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,854.10 : 154,358.70 = 61,553.10 : x
  2. Step 2: Convert to fraction form
    111,854.10/154,358.70 = 61,553.10/x
  3. Step 3: Cross multiply
    111,854.10x = 154,358.70 × 61,553.10
  4. Step 4: Simplify right side
    111,854.10x = 9,501,256,496.97
  5. Step 5: Solve for x
    x = 9,501,256,496.97/111,854.10
  6. Step 6: Final answer
    x = 84,943.30

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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.