Home / 115,670.31-159,642.14-73,232.79

Finding the Fourth Proportional to 115,670.31, 159,642.14 and 73,232.79

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Solution

The fourth proportional to 115,670.31, 159,642.14 and 73,232.79 is: 101,072.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,670.31 : 159,642.14 = 73,232.79 : x
  2. Step 2: Convert to fraction form
    115,670.31/159,642.14 = 73,232.79/x
  3. Step 3: Cross multiply
    115,670.31x = 159,642.14 × 73,232.79
  4. Step 4: Simplify right side
    115,670.31x = 11,691,038,947.61
  5. Step 5: Solve for x
    x = 11,691,038,947.61/115,670.31
  6. Step 6: Final answer
    x = 101,072.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.