Home / 131,447.40-196,911.90-122,116.20

Finding the Fourth Proportional to 131,447.40, 196,911.90 and 122,116.20

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Solution

The fourth proportional to 131,447.40, 196,911.90 and 122,116.20 is: 182,933.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,447.40 : 196,911.90 = 122,116.20 : x
  2. Step 2: Convert to fraction form
    131,447.40/196,911.90 = 122,116.20/x
  3. Step 3: Cross multiply
    131,447.40x = 196,911.90 × 122,116.20
  4. Step 4: Simplify right side
    131,447.40x = 24,046,132,962.78
  5. Step 5: Solve for x
    x = 24,046,132,962.78/131,447.40
  6. Step 6: Final answer
    x = 182,933.50

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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.