Home / 191,457.56-287,186.27-51,212.54

Finding the Fourth Proportional to 191,457.56, 287,186.27 and 51,212.54

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Solution

The fourth proportional to 191,457.56, 287,186.27 and 51,212.54 is: 76,818.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,457.56 : 287,186.27 = 51,212.54 : x
  2. Step 2: Convert to fraction form
    191,457.56/287,186.27 = 51,212.54/x
  3. Step 3: Cross multiply
    191,457.56x = 287,186.27 × 51,212.54
  4. Step 4: Simplify right side
    191,457.56x = 14,707,536,647.83
  5. Step 5: Solve for x
    x = 14,707,536,647.83/191,457.56
  6. Step 6: Final answer
    x = 76,818.78

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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.