Home / 189,561.33-284,341.19-77,216.49

Finding the Fourth Proportional to 189,561.33, 284,341.19 and 77,216.49

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Solution

The fourth proportional to 189,561.33, 284,341.19 and 77,216.49 is: 115,824.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,561.33 : 284,341.19 = 77,216.49 : x
  2. Step 2: Convert to fraction form
    189,561.33/284,341.19 = 77,216.49/x
  3. Step 3: Cross multiply
    189,561.33x = 284,341.19 × 77,216.49
  4. Step 4: Simplify right side
    189,561.33x = 21,955,828,268.14
  5. Step 5: Solve for x
    x = 21,955,828,268.14/189,561.33
  6. Step 6: Final answer
    x = 115,824.41

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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.