Home / 126,804.40-190,071.72-47,885.04

Finding the Fourth Proportional to 126,804.40, 190,071.72 and 47,885.04

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Solution

The fourth proportional to 126,804.40, 190,071.72 and 47,885.04 is: 71,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,804.40 : 190,071.72 = 47,885.04 : x
  2. Step 2: Convert to fraction form
    126,804.40/190,071.72 = 47,885.04/x
  3. Step 3: Cross multiply
    126,804.40x = 190,071.72 × 47,885.04
  4. Step 4: Simplify right side
    126,804.40x = 9,101,591,915.07
  5. Step 5: Solve for x
    x = 9,101,591,915.07/126,804.40
  6. Step 6: Final answer
    x = 71,776.63

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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.