Home / 107,620.32-161,428.74-48,414.12

Finding the Fourth Proportional to 107,620.32, 161,428.74 and 48,414.12

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Solution

The fourth proportional to 107,620.32, 161,428.74 and 48,414.12 is: 72,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,620.32 : 161,428.74 = 48,414.12 : x
  2. Step 2: Convert to fraction form
    107,620.32/161,428.74 = 48,414.12/x
  3. Step 3: Cross multiply
    107,620.32x = 161,428.74 × 48,414.12
  4. Step 4: Simplify right side
    107,620.32x = 7,815,430,389.81
  5. Step 5: Solve for x
    x = 7,815,430,389.81/107,620.32
  6. Step 6: Final answer
    x = 72,620.40

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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.