Home / 131,768.51-181,840.46-71,339.10

Finding the Fourth Proportional to 131,768.51, 181,840.46 and 71,339.10

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Solution

The fourth proportional to 131,768.51, 181,840.46 and 71,339.10 is: 98,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,768.51 : 181,840.46 = 71,339.10 : x
  2. Step 2: Convert to fraction form
    131,768.51/181,840.46 = 71,339.10/x
  3. Step 3: Cross multiply
    131,768.51x = 181,840.46 × 71,339.10
  4. Step 4: Simplify right side
    131,768.51x = 12,972,334,403.29
  5. Step 5: Solve for x
    x = 12,972,334,403.29/131,768.51
  6. Step 6: Final answer
    x = 98,447.91

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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.