Home / 147,810.98-203,965.77-83,290.73

Finding the Fourth Proportional to 147,810.98, 203,965.77 and 83,290.73

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Solution

The fourth proportional to 147,810.98, 203,965.77 and 83,290.73 is: 114,933.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,810.98 : 203,965.77 = 83,290.73 : x
  2. Step 2: Convert to fraction form
    147,810.98/203,965.77 = 83,290.73/x
  3. Step 3: Cross multiply
    147,810.98x = 203,965.77 × 83,290.73
  4. Step 4: Simplify right side
    147,810.98x = 16,988,457,170.82
  5. Step 5: Solve for x
    x = 16,988,457,170.82/147,810.98
  6. Step 6: Final answer
    x = 114,933.66

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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.