Home / 107,478.21-160,971.42-51,357.75

Finding the Fourth Proportional to 107,478.21, 160,971.42 and 51,357.75

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Solution

The fourth proportional to 107,478.21, 160,971.42 and 51,357.75 is: 76,919.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,478.21 : 160,971.42 = 51,357.75 : x
  2. Step 2: Convert to fraction form
    107,478.21/160,971.42 = 51,357.75/x
  3. Step 3: Cross multiply
    107,478.21x = 160,971.42 × 51,357.75
  4. Step 4: Simplify right side
    107,478.21x = 8,267,129,945.51
  5. Step 5: Solve for x
    x = 8,267,129,945.51/107,478.21
  6. Step 6: Final answer
    x = 76,919.13

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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.