Home / 189,776.52-261,917.64-109,202.40

Finding the Fourth Proportional to 189,776.52, 261,917.64 and 109,202.40

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Solution

The fourth proportional to 189,776.52, 261,917.64 and 109,202.40 is: 150,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,776.52 : 261,917.64 = 109,202.40 : x
  2. Step 2: Convert to fraction form
    189,776.52/261,917.64 = 109,202.40/x
  3. Step 3: Cross multiply
    189,776.52x = 261,917.64 × 109,202.40
  4. Step 4: Simplify right side
    189,776.52x = 28,602,034,890.34
  5. Step 5: Solve for x
    x = 28,602,034,890.34/189,776.52
  6. Step 6: Final answer
    x = 150,714.30

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1.5x scale

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.