Home / 154,644.60-213,512.34-118,770.50

Finding the Fourth Proportional to 154,644.60, 213,512.34 and 118,770.50

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Solution

The fourth proportional to 154,644.60, 213,512.34 and 118,770.50 is: 163,982.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,644.60 : 213,512.34 = 118,770.50 : x
  2. Step 2: Convert to fraction form
    154,644.60/213,512.34 = 118,770.50/x
  3. Step 3: Cross multiply
    154,644.60x = 213,512.34 × 118,770.50
  4. Step 4: Simplify right side
    154,644.60x = 25,358,967,377.97
  5. Step 5: Solve for x
    x = 25,358,967,377.97/154,644.60
  6. Step 6: Final answer
    x = 163,982.24

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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.