Home / 253,665.55-380,386.67-76,131.03

Finding the Fourth Proportional to 253,665.55, 380,386.67 and 76,131.03

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Solution

The fourth proportional to 253,665.55, 380,386.67 and 76,131.03 is: 114,163.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,665.55 : 380,386.67 = 76,131.03 : x
  2. Step 2: Convert to fraction form
    253,665.55/380,386.67 = 76,131.03/x
  3. Step 3: Cross multiply
    253,665.55x = 380,386.67 × 76,131.03
  4. Step 4: Simplify right side
    253,665.55x = 28,959,228,604.71
  5. Step 5: Solve for x
    x = 28,959,228,604.71/253,665.55
  6. Step 6: Final answer
    x = 114,163.03

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1.5x scale

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.