Home / 106,280.40-146,683.08-80,744.88

Finding the Fourth Proportional to 106,280.40, 146,683.08 and 80,744.88

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Solution

The fourth proportional to 106,280.40, 146,683.08 and 80,744.88 is: 111,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,280.40 : 146,683.08 = 80,744.88 : x
  2. Step 2: Convert to fraction form
    106,280.40/146,683.08 = 80,744.88/x
  3. Step 3: Cross multiply
    106,280.40x = 146,683.08 × 80,744.88
  4. Step 4: Simplify right side
    106,280.40x = 11,843,907,692.63
  5. Step 5: Solve for x
    x = 11,843,907,692.63/106,280.40
  6. Step 6: Final answer
    x = 111,440.19

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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.