Home / 190,538.74-262,965.14-109,987.89

Finding the Fourth Proportional to 190,538.74, 262,965.14 and 109,987.89

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Solution

The fourth proportional to 190,538.74, 262,965.14 and 109,987.89 is: 151,795.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,538.74 : 262,965.14 = 109,987.89 : x
  2. Step 2: Convert to fraction form
    190,538.74/262,965.14 = 109,987.89/x
  3. Step 3: Cross multiply
    190,538.74x = 262,965.14 × 109,987.89
  4. Step 4: Simplify right side
    190,538.74x = 28,922,980,892.15
  5. Step 5: Solve for x
    x = 28,922,980,892.15/190,538.74
  6. Step 6: Final answer
    x = 151,795.80

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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.