Home / 191,311.51-263,938.58-119,664.31

Finding the Fourth Proportional to 191,311.51, 263,938.58 and 119,664.31

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Solution

The fourth proportional to 191,311.51, 263,938.58 and 119,664.31 is: 165,092.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,311.51 : 263,938.58 = 119,664.31 : x
  2. Step 2: Convert to fraction form
    191,311.51/263,938.58 = 119,664.31/x
  3. Step 3: Cross multiply
    191,311.51x = 263,938.58 × 119,664.31
  4. Step 4: Simplify right side
    191,311.51x = 31,584,027,459.76
  5. Step 5: Solve for x
    x = 31,584,027,459.76/191,311.51
  6. Step 6: Final answer
    x = 165,092.14

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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.