Home / 107,950.32-161,838-91,241.64

Finding the Fourth Proportional to 107,950.32, 161,838 and 91,241.64

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Solution

The fourth proportional to 107,950.32, 161,838 and 91,241.64 is: 136,788.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,950.32 : 161,838 = 91,241.64 : x
  2. Step 2: Convert to fraction form
    107,950.32/161,838 = 91,241.64/x
  3. Step 3: Cross multiply
    107,950.32x = 161,838 × 91,241.64
  4. Step 4: Simplify right side
    107,950.32x = 14,766,364,534.32
  5. Step 5: Solve for x
    x = 14,766,364,534.32/107,950.32
  6. Step 6: Final answer
    x = 136,788.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.