Home / 261,555.18-392,163.93-111,893.10

Finding the Fourth Proportional to 261,555.18, 392,163.93 and 111,893.10

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Solution

The fourth proportional to 261,555.18, 392,163.93 and 111,893.10 is: 167,767.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,555.18 : 392,163.93 = 111,893.10 : x
  2. Step 2: Convert to fraction form
    261,555.18/392,163.93 = 111,893.10/x
  3. Step 3: Cross multiply
    261,555.18x = 392,163.93 × 111,893.10
  4. Step 4: Simplify right side
    261,555.18x = 43,880,437,835.88
  5. Step 5: Solve for x
    x = 43,880,437,835.88/261,555.18
  6. Step 6: Final answer
    x = 167,767.42

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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.