Home / 103,542.45-155,283.60-40,348.47

Finding the Fourth Proportional to 103,542.45, 155,283.60 and 40,348.47

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Solution

The fourth proportional to 103,542.45, 155,283.60 and 40,348.47 is: 60,510.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,542.45 : 155,283.60 = 40,348.47 : x
  2. Step 2: Convert to fraction form
    103,542.45/155,283.60 = 40,348.47/x
  3. Step 3: Cross multiply
    103,542.45x = 155,283.60 × 40,348.47
  4. Step 4: Simplify right side
    103,542.45x = 6,265,455,676.09
  5. Step 5: Solve for x
    x = 6,265,455,676.09/103,542.45
  6. Step 6: Final answer
    x = 60,510.99

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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.