Home / 154,447.16-213,134.09-86,464.26

Finding the Fourth Proportional to 154,447.16, 213,134.09 and 86,464.26

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Solution

The fourth proportional to 154,447.16, 213,134.09 and 86,464.26 is: 119,319.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,447.16 : 213,134.09 = 86,464.26 : x
  2. Step 2: Convert to fraction form
    154,447.16/213,134.09 = 86,464.26/x
  3. Step 3: Cross multiply
    154,447.16x = 213,134.09 × 86,464.26
  4. Step 4: Simplify right side
    154,447.16x = 18,428,480,940.30
  5. Step 5: Solve for x
    x = 18,428,480,940.30/154,447.16
  6. Step 6: Final answer
    x = 119,319.01

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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.