Home / 189,541.27-261,560.10-104,656.51

Finding the Fourth Proportional to 189,541.27, 261,560.10 and 104,656.51

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Solution

The fourth proportional to 189,541.27, 261,560.10 and 104,656.51 is: 144,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,541.27 : 261,560.10 = 104,656.51 : x
  2. Step 2: Convert to fraction form
    189,541.27/261,560.10 = 104,656.51/x
  3. Step 3: Cross multiply
    189,541.27x = 261,560.10 × 104,656.51
  4. Step 4: Simplify right side
    189,541.27x = 27,373,967,221.25
  5. Step 5: Solve for x
    x = 27,373,967,221.25/189,541.27
  6. Step 6: Final answer
    x = 144,422.20

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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.