Home / 155,481.86-214,562.49-86,570.66

Finding the Fourth Proportional to 155,481.86, 214,562.49 and 86,570.66

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Solution

The fourth proportional to 155,481.86, 214,562.49 and 86,570.66 is: 119,466.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,481.86 : 214,562.49 = 86,570.66 : x
  2. Step 2: Convert to fraction form
    155,481.86/214,562.49 = 86,570.66/x
  3. Step 3: Cross multiply
    155,481.86x = 214,562.49 × 86,570.66
  4. Step 4: Simplify right side
    155,481.86x = 18,574,816,370.54
  5. Step 5: Solve for x
    x = 18,574,816,370.54/155,481.86
  6. Step 6: Final answer
    x = 119,466.13

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1.5x scale

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.