Home / 105,722.40-158,583.60-102,650.40

Finding the Fourth Proportional to 105,722.40, 158,583.60 and 102,650.40

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Solution

The fourth proportional to 105,722.40, 158,583.60 and 102,650.40 is: 153,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,722.40 : 158,583.60 = 102,650.40 : x
  2. Step 2: Convert to fraction form
    105,722.40/158,583.60 = 102,650.40/x
  3. Step 3: Cross multiply
    105,722.40x = 158,583.60 × 102,650.40
  4. Step 4: Simplify right side
    105,722.40x = 16,278,669,973.44
  5. Step 5: Solve for x
    x = 16,278,669,973.44/105,722.40
  6. Step 6: Final answer
    x = 153,975.60

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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.