Home / 136,862.96-188,766.81-117,774.89

Finding the Fourth Proportional to 136,862.96, 188,766.81 and 117,774.89

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Solution

The fourth proportional to 136,862.96, 188,766.81 and 117,774.89 is: 162,439.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,862.96 : 188,766.81 = 117,774.89 : x
  2. Step 2: Convert to fraction form
    136,862.96/188,766.81 = 117,774.89/x
  3. Step 3: Cross multiply
    136,862.96x = 188,766.81 × 117,774.89
  4. Step 4: Simplify right side
    136,862.96x = 22,231,990,283.40
  5. Step 5: Solve for x
    x = 22,231,990,283.40/136,862.96
  6. Step 6: Final answer
    x = 162,439.79

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1.5x scale

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.