Home / 103,131.46-154,741.30-43,173.94

Finding the Fourth Proportional to 103,131.46, 154,741.30 and 43,173.94

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Solution

The fourth proportional to 103,131.46, 154,741.30 and 43,173.94 is: 64,779.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,131.46 : 154,741.30 = 43,173.94 : x
  2. Step 2: Convert to fraction form
    103,131.46/154,741.30 = 43,173.94/x
  3. Step 3: Cross multiply
    103,131.46x = 154,741.30 × 43,173.94
  4. Step 4: Simplify right side
    103,131.46x = 6,680,791,601.72
  5. Step 5: Solve for x
    x = 6,680,791,601.72/103,131.46
  6. Step 6: Final answer
    x = 64,779.38

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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.