Home / 107,812.90-161,719.35-48,715.30

Finding the Fourth Proportional to 107,812.90, 161,719.35 and 48,715.30

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Solution

The fourth proportional to 107,812.90, 161,719.35 and 48,715.30 is: 73,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,812.90 : 161,719.35 = 48,715.30 : x
  2. Step 2: Convert to fraction form
    107,812.90/161,719.35 = 48,715.30/x
  3. Step 3: Cross multiply
    107,812.90x = 161,719.35 × 48,715.30
  4. Step 4: Simplify right side
    107,812.90x = 7,878,206,651.06
  5. Step 5: Solve for x
    x = 7,878,206,651.06/107,812.90
  6. Step 6: Final answer
    x = 73,072.95

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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.