Home / 261,911.74-392,538.92-111,975.80

Finding the Fourth Proportional to 261,911.74, 392,538.92 and 111,975.80

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Solution

The fourth proportional to 261,911.74, 392,538.92 and 111,975.80 is: 167,823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,911.74 : 392,538.92 = 111,975.80 : x
  2. Step 2: Convert to fraction form
    261,911.74/392,538.92 = 111,975.80/x
  3. Step 3: Cross multiply
    261,911.74x = 392,538.92 × 111,975.80
  4. Step 4: Simplify right side
    261,911.74x = 43,954,859,598.14
  5. Step 5: Solve for x
    x = 43,954,859,598.14/261,911.74
  6. Step 6: Final answer
    x = 167,823.17

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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.