Home / 154,928.25-213,800.99-87,860.25

Finding the Fourth Proportional to 154,928.25, 213,800.99 and 87,860.25

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Solution

The fourth proportional to 154,928.25, 213,800.99 and 87,860.25 is: 121,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,928.25 : 213,800.99 = 87,860.25 : x
  2. Step 2: Convert to fraction form
    154,928.25/213,800.99 = 87,860.25/x
  3. Step 3: Cross multiply
    154,928.25x = 213,800.99 × 87,860.25
  4. Step 4: Simplify right side
    154,928.25x = 18,784,607,992.35
  5. Step 5: Solve for x
    x = 18,784,607,992.35/154,928.25
  6. Step 6: Final answer
    x = 121,247.15

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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.