Home / 135,779.49-203,493.51-75,806.40

Finding the Fourth Proportional to 135,779.49, 203,493.51 and 75,806.40

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Solution

The fourth proportional to 135,779.49, 203,493.51 and 75,806.40 is: 113,611.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,779.49 : 203,493.51 = 75,806.40 : x
  2. Step 2: Convert to fraction form
    135,779.49/203,493.51 = 75,806.40/x
  3. Step 3: Cross multiply
    135,779.49x = 203,493.51 × 75,806.40
  4. Step 4: Simplify right side
    135,779.49x = 15,426,110,416.46
  5. Step 5: Solve for x
    x = 15,426,110,416.46/135,779.49
  6. Step 6: Final answer
    x = 113,611.49

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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.