Home / 126,938.58-190,220.67-70,701.21

Finding the Fourth Proportional to 126,938.58, 190,220.67 and 70,701.21

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Solution

The fourth proportional to 126,938.58, 190,220.67 and 70,701.21 is: 105,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,938.58 : 190,220.67 = 70,701.21 : x
  2. Step 2: Convert to fraction form
    126,938.58/190,220.67 = 70,701.21/x
  3. Step 3: Cross multiply
    126,938.58x = 190,220.67 × 70,701.21
  4. Step 4: Simplify right side
    126,938.58x = 13,448,831,536.01
  5. Step 5: Solve for x
    x = 13,448,831,536.01/126,938.58
  6. Step 6: Final answer
    x = 105,947.55

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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.