Home / 193,017.30-289,409.09-86,381.41

Finding the Fourth Proportional to 193,017.30, 289,409.09 and 86,381.41

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Solution

The fourth proportional to 193,017.30, 289,409.09 and 86,381.41 is: 129,519.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,017.30 : 289,409.09 = 86,381.41 : x
  2. Step 2: Convert to fraction form
    193,017.30/289,409.09 = 86,381.41/x
  3. Step 3: Cross multiply
    193,017.30x = 289,409.09 × 86,381.41
  4. Step 4: Simplify right side
    193,017.30x = 24,999,565,261.02
  5. Step 5: Solve for x
    x = 24,999,565,261.02/193,017.30
  6. Step 6: Final answer
    x = 129,519.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.