Home / 136,246.86-187,942.95-81,784.53

Finding the Fourth Proportional to 136,246.86, 187,942.95 and 81,784.53

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Solution

The fourth proportional to 136,246.86, 187,942.95 and 81,784.53 is: 112,816.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,246.86 : 187,942.95 = 81,784.53 : x
  2. Step 2: Convert to fraction form
    136,246.86/187,942.95 = 81,784.53/x
  3. Step 3: Cross multiply
    136,246.86x = 187,942.95 × 81,784.53
  4. Step 4: Simplify right side
    136,246.86x = 15,370,825,832.56
  5. Step 5: Solve for x
    x = 15,370,825,832.56/136,246.86
  6. Step 6: Final answer
    x = 112,816.00

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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.