Home / 126,938.56-190,220.66-70,701.22

Finding the Fourth Proportional to 126,938.56, 190,220.66 and 70,701.22

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Solution

The fourth proportional to 126,938.56, 190,220.66 and 70,701.22 is: 105,947.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,938.56 : 190,220.66 = 70,701.22 : x
  2. Step 2: Convert to fraction form
    126,938.56/190,220.66 = 70,701.22/x
  3. Step 3: Cross multiply
    126,938.56x = 190,220.66 × 70,701.22
  4. Step 4: Simplify right side
    126,938.56x = 13,448,832,731.21
  5. Step 5: Solve for x
    x = 13,448,832,731.21/126,938.56
  6. Step 6: Final answer
    x = 105,947.58

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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.