Home / 261,708.43-392,710.86-111,935.38

Finding the Fourth Proportional to 261,708.43, 392,710.86 and 111,935.38

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Solution

The fourth proportional to 261,708.43, 392,710.86 and 111,935.38 is: 167,966.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,708.43 : 392,710.86 = 111,935.38 : x
  2. Step 2: Convert to fraction form
    261,708.43/392,710.86 = 111,935.38/x
  3. Step 3: Cross multiply
    261,708.43x = 392,710.86 × 111,935.38
  4. Step 4: Simplify right side
    261,708.43x = 43,958,239,344.23
  5. Step 5: Solve for x
    x = 43,958,239,344.23/261,708.43
  6. Step 6: Final answer
    x = 167,966.46

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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.