Home / 112,204.87-154,856.33-81,975.06

Finding the Fourth Proportional to 112,204.87, 154,856.33 and 81,975.06

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Solution

The fourth proportional to 112,204.87, 154,856.33 and 81,975.06 is: 113,135.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,204.87 : 154,856.33 = 81,975.06 : x
  2. Step 2: Convert to fraction form
    112,204.87/154,856.33 = 81,975.06/x
  3. Step 3: Cross multiply
    112,204.87x = 154,856.33 × 81,975.06
  4. Step 4: Simplify right side
    112,204.87x = 12,694,356,840.66
  5. Step 5: Solve for x
    x = 12,694,356,840.66/112,204.87
  6. Step 6: Final answer
    x = 113,135.53

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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.