Home / 115,427.73-158,934.95-98,393.79

Finding the Fourth Proportional to 115,427.73, 158,934.95 and 98,393.79

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Solution

The fourth proportional to 115,427.73, 158,934.95 and 98,393.79 is: 135,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,427.73 : 158,934.95 = 98,393.79 : x
  2. Step 2: Convert to fraction form
    115,427.73/158,934.95 = 98,393.79/x
  3. Step 3: Cross multiply
    115,427.73x = 158,934.95 × 98,393.79
  4. Step 4: Simplify right side
    115,427.73x = 15,638,211,601.99
  5. Step 5: Solve for x
    x = 15,638,211,601.99/115,427.73
  6. Step 6: Final answer
    x = 135,480.54

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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.