Home / 127,634.40-191,451.60-74,271.60

Finding the Fourth Proportional to 127,634.40, 191,451.60 and 74,271.60

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Solution

The fourth proportional to 127,634.40, 191,451.60 and 74,271.60 is: 111,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,634.40 : 191,451.60 = 74,271.60 : x
  2. Step 2: Convert to fraction form
    127,634.40/191,451.60 = 74,271.60/x
  3. Step 3: Cross multiply
    127,634.40x = 191,451.60 × 74,271.60
  4. Step 4: Simplify right side
    127,634.40x = 14,219,416,654.56
  5. Step 5: Solve for x
    x = 14,219,416,654.56/127,634.40
  6. Step 6: Final answer
    x = 111,407.40

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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.