Home / 154,533.28-213,231.57-90,013.14

Finding the Fourth Proportional to 154,533.28, 213,231.57 and 90,013.14

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Solution

The fourth proportional to 154,533.28, 213,231.57 and 90,013.14 is: 124,203.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,533.28 : 213,231.57 = 90,013.14 : x
  2. Step 2: Convert to fraction form
    154,533.28/213,231.57 = 90,013.14/x
  3. Step 3: Cross multiply
    154,533.28x = 213,231.57 × 90,013.14
  4. Step 4: Simplify right side
    154,533.28x = 19,193,643,162.83
  5. Step 5: Solve for x
    x = 19,193,643,162.83/154,533.28
  6. Step 6: Final answer
    x = 124,203.95

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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.