Home / 191,677.56-287,516.34-121,409.25

Finding the Fourth Proportional to 191,677.56, 287,516.34 and 121,409.25

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Solution

The fourth proportional to 191,677.56, 287,516.34 and 121,409.25 is: 182,113.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,677.56 : 287,516.34 = 121,409.25 : x
  2. Step 2: Convert to fraction form
    191,677.56/287,516.34 = 121,409.25/x
  3. Step 3: Cross multiply
    191,677.56x = 287,516.34 × 121,409.25
  4. Step 4: Simplify right side
    191,677.56x = 34,907,143,202.15
  5. Step 5: Solve for x
    x = 34,907,143,202.15/191,677.56
  6. Step 6: Final answer
    x = 182,113.88

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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.