Home / 131,431.40-197,438.70-127,932.20

Finding the Fourth Proportional to 131,431.40, 197,438.70 and 127,932.20

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Solution

The fourth proportional to 131,431.40, 197,438.70 and 127,932.20 is: 192,182.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,431.40 : 197,438.70 = 127,932.20 : x
  2. Step 2: Convert to fraction form
    131,431.40/197,438.70 = 127,932.20/x
  3. Step 3: Cross multiply
    131,431.40x = 197,438.70 × 127,932.20
  4. Step 4: Simplify right side
    131,431.40x = 25,258,767,256.14
  5. Step 5: Solve for x
    x = 25,258,767,256.14/131,431.40
  6. Step 6: Final answer
    x = 192,182.14

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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.