Home / 154,422.77-213,093.54-86,428.31

Finding the Fourth Proportional to 154,422.77, 213,093.54 and 86,428.31

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Solution

The fourth proportional to 154,422.77, 213,093.54 and 86,428.31 is: 119,265.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,422.77 : 213,093.54 = 86,428.31 : x
  2. Step 2: Convert to fraction form
    154,422.77/213,093.54 = 86,428.31/x
  3. Step 3: Cross multiply
    154,422.77x = 213,093.54 × 86,428.31
  4. Step 4: Simplify right side
    154,422.77x = 18,417,313,468.65
  5. Step 5: Solve for x
    x = 18,417,313,468.65/154,422.77
  6. Step 6: Final answer
    x = 119,265.53

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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.