Home / 111,764.36-154,207.74-70,913.57

Finding the Fourth Proportional to 111,764.36, 154,207.74 and 70,913.57

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Solution

The fourth proportional to 111,764.36, 154,207.74 and 70,913.57 is: 97,843.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,764.36 : 154,207.74 = 70,913.57 : x
  2. Step 2: Convert to fraction form
    111,764.36/154,207.74 = 70,913.57/x
  3. Step 3: Cross multiply
    111,764.36x = 154,207.74 × 70,913.57
  4. Step 4: Simplify right side
    111,764.36x = 10,935,421,365.03
  5. Step 5: Solve for x
    x = 10,935,421,365.03/111,764.36
  6. Step 6: Final answer
    x = 97,843.55

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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.