Home / 136,619.64-188,535.93-76,194.12

Finding the Fourth Proportional to 136,619.64, 188,535.93 and 76,194.12

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Solution

The fourth proportional to 136,619.64, 188,535.93 and 76,194.12 is: 105,148.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,619.64 : 188,535.93 = 76,194.12 : x
  2. Step 2: Convert to fraction form
    136,619.64/188,535.93 = 76,194.12/x
  3. Step 3: Cross multiply
    136,619.64x = 188,535.93 × 76,194.12
  4. Step 4: Simplify right side
    136,619.64x = 14,365,329,274.73
  5. Step 5: Solve for x
    x = 14,365,329,274.73/136,619.64
  6. Step 6: Final answer
    x = 105,148.35

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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.