Home / 126,907.20-190,274.40-48,009.60

Finding the Fourth Proportional to 126,907.20, 190,274.40 and 48,009.60

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Solution

The fourth proportional to 126,907.20, 190,274.40 and 48,009.60 is: 71,981.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,907.20 : 190,274.40 = 48,009.60 : x
  2. Step 2: Convert to fraction form
    126,907.20/190,274.40 = 48,009.60/x
  3. Step 3: Cross multiply
    126,907.20x = 190,274.40 × 48,009.60
  4. Step 4: Simplify right side
    126,907.20x = 9,134,997,834.24
  5. Step 5: Solve for x
    x = 9,134,997,834.24/126,907.20
  6. Step 6: Final answer
    x = 71,981.71

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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.