Home / 245,087.15-338,213.51-136,188.67

Finding the Fourth Proportional to 245,087.15, 338,213.51 and 136,188.67

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Solution

The fourth proportional to 245,087.15, 338,213.51 and 136,188.67 is: 187,936.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,087.15 : 338,213.51 = 136,188.67 : x
  2. Step 2: Convert to fraction form
    245,087.15/338,213.51 = 136,188.67/x
  3. Step 3: Cross multiply
    245,087.15x = 338,213.51 × 136,188.67
  4. Step 4: Simplify right side
    245,087.15x = 46,060,848,102.93
  5. Step 5: Solve for x
    x = 46,060,848,102.93/245,087.15
  6. Step 6: Final answer
    x = 187,936.61

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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.