Home / 111,749.10-154,213.75-61,448.10

Finding the Fourth Proportional to 111,749.10, 154,213.75 and 61,448.10

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Solution

The fourth proportional to 111,749.10, 154,213.75 and 61,448.10 is: 84,798.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,749.10 : 154,213.75 = 61,448.10 : x
  2. Step 2: Convert to fraction form
    111,749.10/154,213.75 = 61,448.10/x
  3. Step 3: Cross multiply
    111,749.10x = 154,213.75 × 61,448.10
  4. Step 4: Simplify right side
    111,749.10x = 9,476,141,313.93
  5. Step 5: Solve for x
    x = 9,476,141,313.93/111,749.10
  6. Step 6: Final answer
    x = 84,798.37

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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.