Home / 115,237.54-158,971.26-77,006.45

Finding the Fourth Proportional to 115,237.54, 158,971.26 and 77,006.45

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Solution

The fourth proportional to 115,237.54, 158,971.26 and 77,006.45 is: 106,231.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,237.54 : 158,971.26 = 77,006.45 : x
  2. Step 2: Convert to fraction form
    115,237.54/158,971.26 = 77,006.45/x
  3. Step 3: Cross multiply
    115,237.54x = 158,971.26 × 77,006.45
  4. Step 4: Simplify right side
    115,237.54x = 12,241,811,743.45
  5. Step 5: Solve for x
    x = 12,241,811,743.45/115,237.54
  6. Step 6: Final answer
    x = 106,231.11

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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.