Home / 126,988.80-190,922.40-118,766.40

Finding the Fourth Proportional to 126,988.80, 190,922.40 and 118,766.40

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Solution

The fourth proportional to 126,988.80, 190,922.40 and 118,766.40 is: 178,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,988.80 : 190,922.40 = 118,766.40 : x
  2. Step 2: Convert to fraction form
    126,988.80/190,922.40 = 118,766.40/x
  3. Step 3: Cross multiply
    126,988.80x = 190,922.40 × 118,766.40
  4. Step 4: Simplify right side
    126,988.80x = 22,675,166,127.36
  5. Step 5: Solve for x
    x = 22,675,166,127.36/126,988.80
  6. Step 6: Final answer
    x = 178,560.36

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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.