Home / 191,620.42-264,436.66-115,140.79

Finding the Fourth Proportional to 191,620.42, 264,436.66 and 115,140.79

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Solution

The fourth proportional to 191,620.42, 264,436.66 and 115,140.79 is: 158,894.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,620.42 : 264,436.66 = 115,140.79 : x
  2. Step 2: Convert to fraction form
    191,620.42/264,436.66 = 115,140.79/x
  3. Step 3: Cross multiply
    191,620.42x = 264,436.66 × 115,140.79
  4. Step 4: Simplify right side
    191,620.42x = 30,447,446,632.41
  5. Step 5: Solve for x
    x = 30,447,446,632.41/191,620.42
  6. Step 6: Final answer
    x = 158,894.58

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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.