Home / 170,815.86-235,707.90-99,181.86

Finding the Fourth Proportional to 170,815.86, 235,707.90 and 99,181.86

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Solution

The fourth proportional to 170,815.86, 235,707.90 and 99,181.86 is: 136,860.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,815.86 : 235,707.90 = 99,181.86 : x
  2. Step 2: Convert to fraction form
    170,815.86/235,707.90 = 99,181.86/x
  3. Step 3: Cross multiply
    170,815.86x = 235,707.90 × 99,181.86
  4. Step 4: Simplify right side
    170,815.86x = 23,377,947,938.69
  5. Step 5: Solve for x
    x = 23,377,947,938.69/170,815.86
  6. Step 6: Final answer
    x = 136,860.52

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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.