Home / 151,684.25-209,324.10-83,701.20

Finding the Fourth Proportional to 151,684.25, 209,324.10 and 83,701.20

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Solution

The fourth proportional to 151,684.25, 209,324.10 and 83,701.20 is: 115,507.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,684.25 : 209,324.10 = 83,701.20 : x
  2. Step 2: Convert to fraction form
    151,684.25/209,324.10 = 83,701.20/x
  3. Step 3: Cross multiply
    151,684.25x = 209,324.10 × 83,701.20
  4. Step 4: Simplify right side
    151,684.25x = 17,520,677,940.41
  5. Step 5: Solve for x
    x = 17,520,677,940.41/151,684.25
  6. Step 6: Final answer
    x = 115,507.57

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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.