Home / 136,215.42-187,960.95-75,770.79

Finding the Fourth Proportional to 136,215.42, 187,960.95 and 75,770.79

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Solution

The fourth proportional to 136,215.42, 187,960.95 and 75,770.79 is: 104,554.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,215.42 : 187,960.95 = 75,770.79 : x
  2. Step 2: Convert to fraction form
    136,215.42/187,960.95 = 75,770.79/x
  3. Step 3: Cross multiply
    136,215.42x = 187,960.95 × 75,770.79
  4. Step 4: Simplify right side
    136,215.42x = 14,241,949,670.65
  5. Step 5: Solve for x
    x = 14,241,949,670.65/136,215.42
  6. Step 6: Final answer
    x = 104,554.61

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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.