Home / 188,784.78-260,527.86-102,749.40

Finding the Fourth Proportional to 188,784.78, 260,527.86 and 102,749.40

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Solution

The fourth proportional to 188,784.78, 260,527.86 and 102,749.40 is: 141,796.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,784.78 : 260,527.86 = 102,749.40 : x
  2. Step 2: Convert to fraction form
    188,784.78/260,527.86 = 102,749.40/x
  3. Step 3: Cross multiply
    188,784.78x = 260,527.86 × 102,749.40
  4. Step 4: Simplify right side
    188,784.78x = 26,769,081,298.28
  5. Step 5: Solve for x
    x = 26,769,081,298.28/188,784.78
  6. Step 6: Final answer
    x = 141,796.82

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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.