Home / 130,768.76-195,966-74,492.73

Finding the Fourth Proportional to 130,768.76, 195,966 and 74,492.73

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Solution

The fourth proportional to 130,768.76, 195,966 and 74,492.73 is: 111,632.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,768.76 : 195,966 = 74,492.73 : x
  2. Step 2: Convert to fraction form
    130,768.76/195,966 = 74,492.73/x
  3. Step 3: Cross multiply
    130,768.76x = 195,966 × 74,492.73
  4. Step 4: Simplify right side
    130,768.76x = 14,598,042,327.18
  5. Step 5: Solve for x
    x = 14,598,042,327.18/130,768.76
  6. Step 6: Final answer
    x = 111,632.49

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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.