Home / 127,184.99-190,806.03-42,942.15

Finding the Fourth Proportional to 127,184.99, 190,806.03 and 42,942.15

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Solution

The fourth proportional to 127,184.99, 190,806.03 and 42,942.15 is: 64,422.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,184.99 : 190,806.03 = 42,942.15 : x
  2. Step 2: Convert to fraction form
    127,184.99/190,806.03 = 42,942.15/x
  3. Step 3: Cross multiply
    127,184.99x = 190,806.03 × 42,942.15
  4. Step 4: Simplify right side
    127,184.99x = 8,193,621,161.16
  5. Step 5: Solve for x
    x = 8,193,621,161.16/127,184.99
  6. Step 6: Final answer
    x = 64,422.87

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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.