Home / 136,394.90-188,230.78-75,965.55

Finding the Fourth Proportional to 136,394.90, 188,230.78 and 75,965.55

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Solution

The fourth proportional to 136,394.90, 188,230.78 and 75,965.55 is: 104,835.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,394.90 : 188,230.78 = 75,965.55 : x
  2. Step 2: Convert to fraction form
    136,394.90/188,230.78 = 75,965.55/x
  3. Step 3: Cross multiply
    136,394.90x = 188,230.78 × 75,965.55
  4. Step 4: Simplify right side
    136,394.90x = 14,299,054,729.63
  5. Step 5: Solve for x
    x = 14,299,054,729.63/136,394.90
  6. Step 6: Final answer
    x = 104,835.70

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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.