Home / 228,848.42-315,765.78-126,869.42

Finding the Fourth Proportional to 228,848.42, 315,765.78 and 126,869.42

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Solution

The fourth proportional to 228,848.42, 315,765.78 and 126,869.42 is: 175,054.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,848.42 : 315,765.78 = 126,869.42 : x
  2. Step 2: Convert to fraction form
    228,848.42/315,765.78 = 126,869.42/x
  3. Step 3: Cross multiply
    228,848.42x = 315,765.78 × 126,869.42
  4. Step 4: Simplify right side
    228,848.42x = 40,061,021,364.45
  5. Step 5: Solve for x
    x = 40,061,021,364.45/228,848.42
  6. Step 6: Final answer
    x = 175,054.83

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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.