Home / 172,407.72-238,033.80-111,181.31

Finding the Fourth Proportional to 172,407.72, 238,033.80 and 111,181.31

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Solution

The fourth proportional to 172,407.72, 238,033.80 and 111,181.31 is: 153,501.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,407.72 : 238,033.80 = 111,181.31 : x
  2. Step 2: Convert to fraction form
    172,407.72/238,033.80 = 111,181.31/x
  3. Step 3: Cross multiply
    172,407.72x = 238,033.80 × 111,181.31
  4. Step 4: Simplify right side
    172,407.72x = 26,464,908,518.11
  5. Step 5: Solve for x
    x = 26,464,908,518.11/172,407.72
  6. Step 6: Final answer
    x = 153,501.88

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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.