Home / 131,698.96-181,743.18-71,268.28

Finding the Fourth Proportional to 131,698.96, 181,743.18 and 71,268.28

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Solution

The fourth proportional to 131,698.96, 181,743.18 and 71,268.28 is: 98,349.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,698.96 : 181,743.18 = 71,268.28 : x
  2. Step 2: Convert to fraction form
    131,698.96/181,743.18 = 71,268.28/x
  3. Step 3: Cross multiply
    131,698.96x = 181,743.18 × 71,268.28
  4. Step 4: Simplify right side
    131,698.96x = 12,952,523,840.33
  5. Step 5: Solve for x
    x = 12,952,523,840.33/131,698.96
  6. Step 6: Final answer
    x = 98,349.48

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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.