Home / 191,405.63-287,086.58-51,175.19

Finding the Fourth Proportional to 191,405.63, 287,086.58 and 51,175.19

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Solution

The fourth proportional to 191,405.63, 287,086.58 and 51,175.19 is: 76,756.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,405.63 : 287,086.58 = 51,175.19 : x
  2. Step 2: Convert to fraction form
    191,405.63/287,086.58 = 51,175.19/x
  3. Step 3: Cross multiply
    191,405.63x = 287,086.58 × 51,175.19
  4. Step 4: Simplify right side
    191,405.63x = 14,691,708,586.64
  5. Step 5: Solve for x
    x = 14,691,708,586.64/191,405.63
  6. Step 6: Final answer
    x = 76,756.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.