Home / 155,338.56-214,364.64-86,425.36

Finding the Fourth Proportional to 155,338.56, 214,364.64 and 86,425.36

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Solution

The fourth proportional to 155,338.56, 214,364.64 and 86,425.36 is: 119,265.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,338.56 : 214,364.64 = 86,425.36 : x
  2. Step 2: Convert to fraction form
    155,338.56/214,364.64 = 86,425.36/x
  3. Step 3: Cross multiply
    155,338.56x = 214,364.64 × 86,425.36
  4. Step 4: Simplify right side
    155,338.56x = 18,526,541,183.27
  5. Step 5: Solve for x
    x = 18,526,541,183.27/155,338.56
  6. Step 6: Final answer
    x = 119,265.57

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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.