Home / 104,176.83-143,774.67-75,129.19

Finding the Fourth Proportional to 104,176.83, 143,774.67 and 75,129.19

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Solution

The fourth proportional to 104,176.83, 143,774.67 and 75,129.19 is: 103,685.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,176.83 : 143,774.67 = 75,129.19 : x
  2. Step 2: Convert to fraction form
    104,176.83/143,774.67 = 75,129.19/x
  3. Step 3: Cross multiply
    104,176.83x = 143,774.67 × 75,129.19
  4. Step 4: Simplify right side
    104,176.83x = 10,801,674,808.05
  5. Step 5: Solve for x
    x = 10,801,674,808.05/104,176.83
  6. Step 6: Final answer
    x = 103,685.96

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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.