Home / 103,250.40-154,875.60-40,912.80

Finding the Fourth Proportional to 103,250.40, 154,875.60 and 40,912.80

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Solution

The fourth proportional to 103,250.40, 154,875.60 and 40,912.80 is: 61,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,250.40 : 154,875.60 = 40,912.80 : x
  2. Step 2: Convert to fraction form
    103,250.40/154,875.60 = 40,912.80/x
  3. Step 3: Cross multiply
    103,250.40x = 154,875.60 × 40,912.80
  4. Step 4: Simplify right side
    103,250.40x = 6,336,394,447.68
  5. Step 5: Solve for x
    x = 6,336,394,447.68/103,250.40
  6. Step 6: Final answer
    x = 61,369.20

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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.