Home / 105,738.49-145,923.33-57,993.58

Finding the Fourth Proportional to 105,738.49, 145,923.33 and 57,993.58

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Solution

The fourth proportional to 105,738.49, 145,923.33 and 57,993.58 is: 80,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,738.49 : 145,923.33 = 57,993.58 : x
  2. Step 2: Convert to fraction form
    105,738.49/145,923.33 = 57,993.58/x
  3. Step 3: Cross multiply
    105,738.49x = 145,923.33 × 57,993.58
  4. Step 4: Simplify right side
    105,738.49x = 8,462,616,312.22
  5. Step 5: Solve for x
    x = 8,462,616,312.22/105,738.49
  6. Step 6: Final answer
    x = 80,033.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.