Home / 103,701.87-155,645.52-53,135.39

Finding the Fourth Proportional to 103,701.87, 155,645.52 and 53,135.39

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Solution

The fourth proportional to 103,701.87, 155,645.52 and 53,135.39 is: 79,750.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,701.87 : 155,645.52 = 53,135.39 : x
  2. Step 2: Convert to fraction form
    103,701.87/155,645.52 = 53,135.39/x
  3. Step 3: Cross multiply
    103,701.87x = 155,645.52 × 53,135.39
  4. Step 4: Simplify right side
    103,701.87x = 8,270,285,406.95
  5. Step 5: Solve for x
    x = 8,270,285,406.95/103,701.87
  6. Step 6: Final answer
    x = 79,750.59

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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.