Home / 127,860.80-191,719.20-48,977.60

Finding the Fourth Proportional to 127,860.80, 191,719.20 and 48,977.60

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Solution

The fourth proportional to 127,860.80, 191,719.20 and 48,977.60 is: 73,438.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,860.80 : 191,719.20 = 48,977.60 : x
  2. Step 2: Convert to fraction form
    127,860.80/191,719.20 = 48,977.60/x
  3. Step 3: Cross multiply
    127,860.80x = 191,719.20 × 48,977.60
  4. Step 4: Simplify right side
    127,860.80x = 9,389,946,289.92
  5. Step 5: Solve for x
    x = 9,389,946,289.92/127,860.80
  6. Step 6: Final answer
    x = 73,438.82

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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.