Home / 154,399.16-213,040.56-86,419.10

Finding the Fourth Proportional to 154,399.16, 213,040.56 and 86,419.10

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Solution

The fourth proportional to 154,399.16, 213,040.56 and 86,419.10 is: 119,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,399.16 : 213,040.56 = 86,419.10 : x
  2. Step 2: Convert to fraction form
    154,399.16/213,040.56 = 86,419.10/x
  3. Step 3: Cross multiply
    154,399.16x = 213,040.56 × 86,419.10
  4. Step 4: Simplify right side
    154,399.16x = 18,410,773,458.70
  5. Step 5: Solve for x
    x = 18,410,773,458.70/154,399.16
  6. Step 6: Final answer
    x = 119,241.41

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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.