Home / 135,743.80-203,486.10-105,741.40

Finding the Fourth Proportional to 135,743.80, 203,486.10 and 105,741.40

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Solution

The fourth proportional to 135,743.80, 203,486.10 and 105,741.40 is: 158,511.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,743.80 : 203,486.10 = 105,741.40 : x
  2. Step 2: Convert to fraction form
    135,743.80/203,486.10 = 105,741.40/x
  3. Step 3: Cross multiply
    135,743.80x = 203,486.10 × 105,741.40
  4. Step 4: Simplify right side
    135,743.80x = 21,516,905,094.54
  5. Step 5: Solve for x
    x = 21,516,905,094.54/135,743.80
  6. Step 6: Final answer
    x = 158,511.14

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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.