Home / 124,840.31-172,237.46-71,087.22

Finding the Fourth Proportional to 124,840.31, 172,237.46 and 71,087.22

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Solution

The fourth proportional to 124,840.31, 172,237.46 and 71,087.22 is: 98,076.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,840.31 : 172,237.46 = 71,087.22 : x
  2. Step 2: Convert to fraction form
    124,840.31/172,237.46 = 71,087.22/x
  3. Step 3: Cross multiply
    124,840.31x = 172,237.46 × 71,087.22
  4. Step 4: Simplify right side
    124,840.31x = 12,243,881,855.83
  5. Step 5: Solve for x
    x = 12,243,881,855.83/124,840.31
  6. Step 6: Final answer
    x = 98,076.35

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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.