Home / 261,971.74-392,628.78-112,035.67

Finding the Fourth Proportional to 261,971.74, 392,628.78 and 112,035.67

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Solution

The fourth proportional to 261,971.74, 392,628.78 and 112,035.67 is: 167,912.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,971.74 : 392,628.78 = 112,035.67 : x
  2. Step 2: Convert to fraction form
    261,971.74/392,628.78 = 112,035.67/x
  3. Step 3: Cross multiply
    261,971.74x = 392,628.78 × 112,035.67
  4. Step 4: Simplify right side
    261,971.74x = 43,988,428,428.58
  5. Step 5: Solve for x
    x = 43,988,428,428.58/261,971.74
  6. Step 6: Final answer
    x = 167,912.88

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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.