Home / 189,167.08-261,052.60-104,287.20

Finding the Fourth Proportional to 189,167.08, 261,052.60 and 104,287.20

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Solution

The fourth proportional to 189,167.08, 261,052.60 and 104,287.20 is: 143,917.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,167.08 : 261,052.60 = 104,287.20 : x
  2. Step 2: Convert to fraction form
    189,167.08/261,052.60 = 104,287.20/x
  3. Step 3: Cross multiply
    189,167.08x = 261,052.60 × 104,287.20
  4. Step 4: Simplify right side
    189,167.08x = 27,224,444,706.72
  5. Step 5: Solve for x
    x = 27,224,444,706.72/189,167.08
  6. Step 6: Final answer
    x = 143,917.45

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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.