Home / 106,540.96-147,040.08-64,122.40

Finding the Fourth Proportional to 106,540.96, 147,040.08 and 64,122.40

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Solution

The fourth proportional to 106,540.96, 147,040.08 and 64,122.40 is: 88,497.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,540.96 : 147,040.08 = 64,122.40 : x
  2. Step 2: Convert to fraction form
    106,540.96/147,040.08 = 64,122.40/x
  3. Step 3: Cross multiply
    106,540.96x = 147,040.08 × 64,122.40
  4. Step 4: Simplify right side
    106,540.96x = 9,428,562,825.79
  5. Step 5: Solve for x
    x = 9,428,562,825.79/106,540.96
  6. Step 6: Final answer
    x = 88,497.07

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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.