Home / 136,943.56-188,991.02-76,514.56

Finding the Fourth Proportional to 136,943.56, 188,991.02 and 76,514.56

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Solution

The fourth proportional to 136,943.56, 188,991.02 and 76,514.56 is: 105,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,943.56 : 188,991.02 = 76,514.56 : x
  2. Step 2: Convert to fraction form
    136,943.56/188,991.02 = 76,514.56/x
  3. Step 3: Cross multiply
    136,943.56x = 188,991.02 × 76,514.56
  4. Step 4: Simplify right side
    136,943.56x = 14,460,564,739.25
  5. Step 5: Solve for x
    x = 14,460,564,739.25/136,943.56
  6. Step 6: Final answer
    x = 105,595.07

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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.