Home / 261,976.08-392,635.53-112,040.36

Finding the Fourth Proportional to 261,976.08, 392,635.53 and 112,040.36

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Solution

The fourth proportional to 261,976.08, 392,635.53 and 112,040.36 is: 167,920.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,976.08 : 392,635.53 = 112,040.36 : x
  2. Step 2: Convert to fraction form
    261,976.08/392,635.53 = 112,040.36/x
  3. Step 3: Cross multiply
    261,976.08x = 392,635.53 × 112,040.36
  4. Step 4: Simplify right side
    261,976.08x = 43,991,024,166.81
  5. Step 5: Solve for x
    x = 43,991,024,166.81/261,976.08
  6. Step 6: Final answer
    x = 167,920.00

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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.