Home / 190,436.74-262,793.64-109,890.16

Finding the Fourth Proportional to 190,436.74, 262,793.64 and 109,890.16

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Solution

The fourth proportional to 190,436.74, 262,793.64 and 109,890.16 is: 151,643.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,436.74 : 262,793.64 = 109,890.16 : x
  2. Step 2: Convert to fraction form
    190,436.74/262,793.64 = 109,890.16/x
  3. Step 3: Cross multiply
    190,436.74x = 262,793.64 × 109,890.16
  4. Step 4: Simplify right side
    190,436.74x = 28,878,435,146.58
  5. Step 5: Solve for x
    x = 28,878,435,146.58/190,436.74
  6. Step 6: Final answer
    x = 151,643.19

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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.