Home / 163,076.70-244,615.05-78,877.20

Finding the Fourth Proportional to 163,076.70, 244,615.05 and 78,877.20

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Solution

The fourth proportional to 163,076.70, 244,615.05 and 78,877.20 is: 118,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,076.70 : 244,615.05 = 78,877.20 : x
  2. Step 2: Convert to fraction form
    163,076.70/244,615.05 = 78,877.20/x
  3. Step 3: Cross multiply
    163,076.70x = 244,615.05 × 78,877.20
  4. Step 4: Simplify right side
    163,076.70x = 19,294,550,221.86
  5. Step 5: Solve for x
    x = 19,294,550,221.86/163,076.70
  6. Step 6: Final answer
    x = 118,315.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.