Home / 115,987.75-173,981.63-28,435.75

Finding the Fourth Proportional to 115,987.75, 173,981.63 and 28,435.75

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Solution

The fourth proportional to 115,987.75, 173,981.63 and 28,435.75 is: 42,653.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,987.75 : 173,981.63 = 28,435.75 : x
  2. Step 2: Convert to fraction form
    115,987.75/173,981.63 = 28,435.75/x
  3. Step 3: Cross multiply
    115,987.75x = 173,981.63 × 28,435.75
  4. Step 4: Simplify right side
    115,987.75x = 4,947,298,135.27
  5. Step 5: Solve for x
    x = 4,947,298,135.27/115,987.75
  6. Step 6: Final answer
    x = 42,653.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.