Home / 129,975.09-194,962.65-36,478.41

Finding the Fourth Proportional to 129,975.09, 194,962.65 and 36,478.41

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Solution

The fourth proportional to 129,975.09, 194,962.65 and 36,478.41 is: 54,717.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,975.09 : 194,962.65 = 36,478.41 : x
  2. Step 2: Convert to fraction form
    129,975.09/194,962.65 = 36,478.41/x
  3. Step 3: Cross multiply
    129,975.09x = 194,962.65 × 36,478.41
  4. Step 4: Simplify right side
    129,975.09x = 7,111,927,481.39
  5. Step 5: Solve for x
    x = 7,111,927,481.39/129,975.09
  6. Step 6: Final answer
    x = 54,717.62

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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.