Home / 171,742.23-236,955.78-111,315.42

Finding the Fourth Proportional to 171,742.23, 236,955.78 and 111,315.42

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Solution

The fourth proportional to 171,742.23, 236,955.78 and 111,315.42 is: 153,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,742.23 : 236,955.78 = 111,315.42 : x
  2. Step 2: Convert to fraction form
    171,742.23/236,955.78 = 111,315.42/x
  3. Step 3: Cross multiply
    171,742.23x = 236,955.78 × 111,315.42
  4. Step 4: Simplify right side
    171,742.23x = 26,376,832,172.13
  5. Step 5: Solve for x
    x = 26,376,832,172.13/171,742.23
  6. Step 6: Final answer
    x = 153,583.85

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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.