Home / 136,399.02-188,236.50-75,969.68

Finding the Fourth Proportional to 136,399.02, 188,236.50 and 75,969.68

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Solution

The fourth proportional to 136,399.02, 188,236.50 and 75,969.68 is: 104,841.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,399.02 : 188,236.50 = 75,969.68 : x
  2. Step 2: Convert to fraction form
    136,399.02/188,236.50 = 75,969.68/x
  3. Step 3: Cross multiply
    136,399.02x = 188,236.50 × 75,969.68
  4. Step 4: Simplify right side
    136,399.02x = 14,300,266,669.32
  5. Step 5: Solve for x
    x = 14,300,266,669.32/136,399.02
  6. Step 6: Final answer
    x = 104,841.42

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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.