Home / 105,441.45-158,162.78-43,111.95

Finding the Fourth Proportional to 105,441.45, 158,162.78 and 43,111.95

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Solution

The fourth proportional to 105,441.45, 158,162.78 and 43,111.95 is: 64,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,441.45 : 158,162.78 = 43,111.95 : x
  2. Step 2: Convert to fraction form
    105,441.45/158,162.78 = 43,111.95/x
  3. Step 3: Cross multiply
    105,441.45x = 158,162.78 × 43,111.95
  4. Step 4: Simplify right side
    105,441.45x = 6,818,705,135.39
  5. Step 5: Solve for x
    x = 6,818,705,135.39/105,441.45
  6. Step 6: Final answer
    x = 64,668.17

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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.