Home / 147,418.21-203,437.73-83,759.50

Finding the Fourth Proportional to 147,418.21, 203,437.73 and 83,759.50

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Solution

The fourth proportional to 147,418.21, 203,437.73 and 83,759.50 is: 115,588.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,418.21 : 203,437.73 = 83,759.50 : x
  2. Step 2: Convert to fraction form
    147,418.21/203,437.73 = 83,759.50/x
  3. Step 3: Cross multiply
    147,418.21x = 203,437.73 × 83,759.50
  4. Step 4: Simplify right side
    147,418.21x = 17,039,841,109.95
  5. Step 5: Solve for x
    x = 17,039,841,109.95/147,418.21
  6. Step 6: Final answer
    x = 115,588.45

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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.