Home / 100,362.41-138,506.25-57,923.67

Finding the Fourth Proportional to 100,362.41, 138,506.25 and 57,923.67

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Solution

The fourth proportional to 100,362.41, 138,506.25 and 57,923.67 is: 79,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,362.41 : 138,506.25 = 57,923.67 : x
  2. Step 2: Convert to fraction form
    100,362.41/138,506.25 = 57,923.67/x
  3. Step 3: Cross multiply
    100,362.41x = 138,506.25 × 57,923.67
  4. Step 4: Simplify right side
    100,362.41x = 8,022,790,317.94
  5. Step 5: Solve for x
    x = 8,022,790,317.94/100,362.41
  6. Step 6: Final answer
    x = 79,938.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.