Home / 111,853.51-154,353.49-64,072.87

Finding the Fourth Proportional to 111,853.51, 154,353.49 and 64,072.87

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Solution

The fourth proportional to 111,853.51, 154,353.49 and 64,072.87 is: 88,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,853.51 : 154,353.49 = 64,072.87 : x
  2. Step 2: Convert to fraction form
    111,853.51/154,353.49 = 64,072.87/x
  3. Step 3: Cross multiply
    111,853.51x = 154,353.49 × 64,072.87
  4. Step 4: Simplify right side
    111,853.51x = 9,889,871,098.82
  5. Step 5: Solve for x
    x = 9,889,871,098.82/111,853.51
  6. Step 6: Final answer
    x = 88,418.07

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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.