Home / 115,579.82-159,511.47-70,254.38

Finding the Fourth Proportional to 115,579.82, 159,511.47 and 70,254.38

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Solution

The fourth proportional to 115,579.82, 159,511.47 and 70,254.38 is: 96,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,579.82 : 159,511.47 = 70,254.38 : x
  2. Step 2: Convert to fraction form
    115,579.82/159,511.47 = 70,254.38/x
  3. Step 3: Cross multiply
    115,579.82x = 159,511.47 × 70,254.38
  4. Step 4: Simplify right side
    115,579.82x = 11,206,379,427.74
  5. Step 5: Solve for x
    x = 11,206,379,427.74/115,579.82
  6. Step 6: Final answer
    x = 96,957.92

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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.