Home / 103,653.77-155,292.03-71,996.95

Finding the Fourth Proportional to 103,653.77, 155,292.03 and 71,996.95

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Solution

The fourth proportional to 103,653.77, 155,292.03 and 71,996.95 is: 107,864.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,653.77 : 155,292.03 = 71,996.95 : x
  2. Step 2: Convert to fraction form
    103,653.77/155,292.03 = 71,996.95/x
  3. Step 3: Cross multiply
    103,653.77x = 155,292.03 × 71,996.95
  4. Step 4: Simplify right side
    103,653.77x = 11,180,552,519.31
  5. Step 5: Solve for x
    x = 11,180,552,519.31/103,653.77
  6. Step 6: Final answer
    x = 107,864.41

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1.5x scale

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.