Home / 126,828.36-190,038.42-74,282.04

Finding the Fourth Proportional to 126,828.36, 190,038.42 and 74,282.04

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Solution

The fourth proportional to 126,828.36, 190,038.42 and 74,282.04 is: 111,303.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,828.36 : 190,038.42 = 74,282.04 : x
  2. Step 2: Convert to fraction form
    126,828.36/190,038.42 = 74,282.04/x
  3. Step 3: Cross multiply
    126,828.36x = 190,038.42 × 74,282.04
  4. Step 4: Simplify right side
    126,828.36x = 14,116,441,515.98
  5. Step 5: Solve for x
    x = 14,116,441,515.98/126,828.36
  6. Step 6: Final answer
    x = 111,303.51

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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.