Home / 154,395.44-213,118.26-90,752.12

Finding the Fourth Proportional to 154,395.44, 213,118.26 and 90,752.12

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Solution

The fourth proportional to 154,395.44, 213,118.26 and 90,752.12 is: 125,268.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,395.44 : 213,118.26 = 90,752.12 : x
  2. Step 2: Convert to fraction form
    154,395.44/213,118.26 = 90,752.12/x
  3. Step 3: Cross multiply
    154,395.44x = 213,118.26 × 90,752.12
  4. Step 4: Simplify right side
    154,395.44x = 19,340,933,905.71
  5. Step 5: Solve for x
    x = 19,340,933,905.71/154,395.44
  6. Step 6: Final answer
    x = 125,268.82

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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.