Home / 136,646.25-188,492.88-82,160.57

Finding the Fourth Proportional to 136,646.25, 188,492.88 and 82,160.57

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Solution

The fourth proportional to 136,646.25, 188,492.88 and 82,160.57 is: 113,334.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,646.25 : 188,492.88 = 82,160.57 : x
  2. Step 2: Convert to fraction form
    136,646.25/188,492.88 = 82,160.57/x
  3. Step 3: Cross multiply
    136,646.25x = 188,492.88 × 82,160.57
  4. Step 4: Simplify right side
    136,646.25x = 15,486,683,042.49
  5. Step 5: Solve for x
    x = 15,486,683,042.49/136,646.25
  6. Step 6: Final answer
    x = 113,334.13

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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.