Home / 133,097.41-199,547.69-80,495.20

Finding the Fourth Proportional to 133,097.41, 199,547.69 and 80,495.20

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Solution

The fourth proportional to 133,097.41, 199,547.69 and 80,495.20 is: 120,683.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,097.41 : 199,547.69 = 80,495.20 : x
  2. Step 2: Convert to fraction form
    133,097.41/199,547.69 = 80,495.20/x
  3. Step 3: Cross multiply
    133,097.41x = 199,547.69 × 80,495.20
  4. Step 4: Simplify right side
    133,097.41x = 16,062,631,216.09
  5. Step 5: Solve for x
    x = 16,062,631,216.09/133,097.41
  6. Step 6: Final answer
    x = 120,683.27

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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.