Home / 154,591.56-213,353.55-86,619.60

Finding the Fourth Proportional to 154,591.56, 213,353.55 and 86,619.60

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Solution

The fourth proportional to 154,591.56, 213,353.55 and 86,619.60 is: 119,544.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,591.56 : 213,353.55 = 86,619.60 : x
  2. Step 2: Convert to fraction form
    154,591.56/213,353.55 = 86,619.60/x
  3. Step 3: Cross multiply
    154,591.56x = 213,353.55 × 86,619.60
  4. Step 4: Simplify right side
    154,591.56x = 18,480,599,159.58
  5. Step 5: Solve for x
    x = 18,480,599,159.58/154,591.56
  6. Step 6: Final answer
    x = 119,544.68

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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.