Home / 103,968.63-155,823.75-47,749.10

Finding the Fourth Proportional to 103,968.63, 155,823.75 and 47,749.10

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Solution

The fourth proportional to 103,968.63, 155,823.75 and 47,749.10 is: 71,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,968.63 : 155,823.75 = 47,749.10 : x
  2. Step 2: Convert to fraction form
    103,968.63/155,823.75 = 47,749.10/x
  3. Step 3: Cross multiply
    103,968.63x = 155,823.75 × 47,749.10
  4. Step 4: Simplify right side
    103,968.63x = 7,440,443,431.57
  5. Step 5: Solve for x
    x = 7,440,443,431.57/103,968.63
  6. Step 6: Final answer
    x = 71,564.31

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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.