Home / 148,692.71-205,190.45-80,708.24

Finding the Fourth Proportional to 148,692.71, 205,190.45 and 80,708.24

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Solution

The fourth proportional to 148,692.71, 205,190.45 and 80,708.24 is: 111,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,692.71 : 205,190.45 = 80,708.24 : x
  2. Step 2: Convert to fraction form
    148,692.71/205,190.45 = 80,708.24/x
  3. Step 3: Cross multiply
    148,692.71x = 205,190.45 × 80,708.24
  4. Step 4: Simplify right side
    148,692.71x = 16,560,560,395.51
  5. Step 5: Solve for x
    x = 16,560,560,395.51/148,692.71
  6. Step 6: Final answer
    x = 111,374.40

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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.