Home / 261,943.73-392,586.81-112,007.66

Finding the Fourth Proportional to 261,943.73, 392,586.81 and 112,007.66

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Solution

The fourth proportional to 261,943.73, 392,586.81 and 112,007.66 is: 167,870.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,943.73 : 392,586.81 = 112,007.66 : x
  2. Step 2: Convert to fraction form
    261,943.73/392,586.81 = 112,007.66/x
  3. Step 3: Cross multiply
    261,943.73x = 392,586.81 × 112,007.66
  4. Step 4: Simplify right side
    261,943.73x = 43,972,727,972.03
  5. Step 5: Solve for x
    x = 43,972,727,972.03/261,943.73
  6. Step 6: Final answer
    x = 167,870.90

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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.