Home / 154,624.40-213,378.06-90,966.30

Finding the Fourth Proportional to 154,624.40, 213,378.06 and 90,966.30

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Solution

The fourth proportional to 154,624.40, 213,378.06 and 90,966.30 is: 125,531.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,624.40 : 213,378.06 = 90,966.30 : x
  2. Step 2: Convert to fraction form
    154,624.40/213,378.06 = 90,966.30/x
  3. Step 3: Cross multiply
    154,624.40x = 213,378.06 × 90,966.30
  4. Step 4: Simplify right side
    154,624.40x = 19,410,212,619.38
  5. Step 5: Solve for x
    x = 19,410,212,619.38/154,624.40
  6. Step 6: Final answer
    x = 125,531.37

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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.