Home / 142,706.75-196,884.81-85,306.23

Finding the Fourth Proportional to 142,706.75, 196,884.81 and 85,306.23

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Solution

The fourth proportional to 142,706.75, 196,884.81 and 85,306.23 is: 117,692.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,706.75 : 196,884.81 = 85,306.23 : x
  2. Step 2: Convert to fraction form
    142,706.75/196,884.81 = 85,306.23/x
  3. Step 3: Cross multiply
    142,706.75x = 196,884.81 × 85,306.23
  4. Step 4: Simplify right side
    142,706.75x = 16,795,500,885.37
  5. Step 5: Solve for x
    x = 16,795,500,885.37/142,706.75
  6. Step 6: Final answer
    x = 117,692.41

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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.