Home / 131,443.40-196,905.90-122,112.20

Finding the Fourth Proportional to 131,443.40, 196,905.90 and 122,112.20

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Solution

The fourth proportional to 131,443.40, 196,905.90 and 122,112.20 is: 182,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,443.40 : 196,905.90 = 122,112.20 : x
  2. Step 2: Convert to fraction form
    131,443.40/196,905.90 = 122,112.20/x
  3. Step 3: Cross multiply
    131,443.40x = 196,905.90 × 122,112.20
  4. Step 4: Simplify right side
    131,443.40x = 24,044,612,641.98
  5. Step 5: Solve for x
    x = 24,044,612,641.98/131,443.40
  6. Step 6: Final answer
    x = 182,927.50

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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.