Home / 136,226.96-187,991.40-76,610.96

Finding the Fourth Proportional to 136,226.96, 187,991.40 and 76,610.96

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Solution

The fourth proportional to 136,226.96, 187,991.40 and 76,610.96 is: 105,722.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,226.96 : 187,991.40 = 76,610.96 : x
  2. Step 2: Convert to fraction form
    136,226.96/187,991.40 = 76,610.96/x
  3. Step 3: Cross multiply
    136,226.96x = 187,991.40 × 76,610.96
  4. Step 4: Simplify right side
    136,226.96x = 14,402,201,625.74
  5. Step 5: Solve for x
    x = 14,402,201,625.74/136,226.96
  6. Step 6: Final answer
    x = 105,722.11

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1.5x scale

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.