Home / 147,768.10-221,684.56-47,938.39

Finding the Fourth Proportional to 147,768.10, 221,684.56 and 47,938.39

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Solution

The fourth proportional to 147,768.10, 221,684.56 and 47,938.39 is: 71,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,768.10 : 221,684.56 = 47,938.39 : x
  2. Step 2: Convert to fraction form
    147,768.10/221,684.56 = 47,938.39/x
  3. Step 3: Cross multiply
    147,768.10x = 221,684.56 × 47,938.39
  4. Step 4: Simplify right side
    147,768.10x = 10,627,200,220.20
  5. Step 5: Solve for x
    x = 10,627,200,220.20/147,768.10
  6. Step 6: Final answer
    x = 71,918.10

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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.