Home / 115,378.19-173,059.07-31,143.16

Finding the Fourth Proportional to 115,378.19, 173,059.07 and 31,143.16

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Solution

The fourth proportional to 115,378.19, 173,059.07 and 31,143.16 is: 46,712.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,378.19 : 173,059.07 = 31,143.16 : x
  2. Step 2: Convert to fraction form
    115,378.19/173,059.07 = 31,143.16/x
  3. Step 3: Cross multiply
    115,378.19x = 173,059.07 × 31,143.16
  4. Step 4: Simplify right side
    115,378.19x = 5,389,605,441.17
  5. Step 5: Solve for x
    x = 5,389,605,441.17/115,378.19
  6. Step 6: Final answer
    x = 46,712.52

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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.