Home / 105,941.79-158,910.60-42,760.23

Finding the Fourth Proportional to 105,941.79, 158,910.60 and 42,760.23

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Solution

The fourth proportional to 105,941.79, 158,910.60 and 42,760.23 is: 64,139.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,941.79 : 158,910.60 = 42,760.23 : x
  2. Step 2: Convert to fraction form
    105,941.79/158,910.60 = 42,760.23/x
  3. Step 3: Cross multiply
    105,941.79x = 158,910.60 × 42,760.23
  4. Step 4: Simplify right side
    105,941.79x = 6,795,053,805.44
  5. Step 5: Solve for x
    x = 6,795,053,805.44/105,941.79
  6. Step 6: Final answer
    x = 64,139.50

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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.