Home / 105,940.29-158,908.35-42,758.73

Finding the Fourth Proportional to 105,940.29, 158,908.35 and 42,758.73

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Solution

The fourth proportional to 105,940.29, 158,908.35 and 42,758.73 is: 64,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,940.29 : 158,908.35 = 42,758.73 : x
  2. Step 2: Convert to fraction form
    105,940.29/158,908.35 = 42,758.73/x
  3. Step 3: Cross multiply
    105,940.29x = 158,908.35 × 42,758.73
  4. Step 4: Simplify right side
    105,940.29x = 6,794,719,232.40
  5. Step 5: Solve for x
    x = 6,794,719,232.40/105,940.29
  6. Step 6: Final answer
    x = 64,137.25

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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.