Home / 109,643.39-164,332.63-53,399.22

Finding the Fourth Proportional to 109,643.39, 164,332.63 and 53,399.22

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Solution

The fourth proportional to 109,643.39, 164,332.63 and 53,399.22 is: 80,034.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,643.39 : 164,332.63 = 53,399.22 : x
  2. Step 2: Convert to fraction form
    109,643.39/164,332.63 = 53,399.22/x
  3. Step 3: Cross multiply
    109,643.39x = 164,332.63 × 53,399.22
  4. Step 4: Simplify right side
    109,643.39x = 8,775,233,713.05
  5. Step 5: Solve for x
    x = 8,775,233,713.05/109,643.39
  6. Step 6: Final answer
    x = 80,034.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.