Home / 131,785.60-197,692.80-127,638.40

Finding the Fourth Proportional to 131,785.60, 197,692.80 and 127,638.40

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Solution

The fourth proportional to 131,785.60, 197,692.80 and 127,638.40 is: 191,471.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,785.60 : 197,692.80 = 127,638.40 : x
  2. Step 2: Convert to fraction form
    131,785.60/197,692.80 = 127,638.40/x
  3. Step 3: Cross multiply
    131,785.60x = 197,692.80 × 127,638.40
  4. Step 4: Simplify right side
    131,785.60x = 25,233,192,683.52
  5. Step 5: Solve for x
    x = 25,233,192,683.52/131,785.60
  6. Step 6: Final answer
    x = 191,471.55

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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.