Home / 181,977.10-251,129.40-105,541.50

Finding the Fourth Proportional to 181,977.10, 251,129.40 and 105,541.50

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Solution

The fourth proportional to 181,977.10, 251,129.40 and 105,541.50 is: 145,647.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,977.10 : 251,129.40 = 105,541.50 : x
  2. Step 2: Convert to fraction form
    181,977.10/251,129.40 = 105,541.50/x
  3. Step 3: Cross multiply
    181,977.10x = 251,129.40 × 105,541.50
  4. Step 4: Simplify right side
    181,977.10x = 26,504,573,570.10
  5. Step 5: Solve for x
    x = 26,504,573,570.10/181,977.10
  6. Step 6: Final answer
    x = 145,647.85

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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.