Home / 131,243.84-196,748-48,079.68

Finding the Fourth Proportional to 131,243.84, 196,748 and 48,079.68

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Solution

The fourth proportional to 131,243.84, 196,748 and 48,079.68 is: 72,076.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,243.84 : 196,748 = 48,079.68 : x
  2. Step 2: Convert to fraction form
    131,243.84/196,748 = 48,079.68/x
  3. Step 3: Cross multiply
    131,243.84x = 196,748 × 48,079.68
  4. Step 4: Simplify right side
    131,243.84x = 9,459,580,880.64
  5. Step 5: Solve for x
    x = 9,459,580,880.64/131,243.84
  6. Step 6: Final answer
    x = 72,076.38

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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.