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Finding the Fourth Proportional to 127,986.80, 192,037.80 and 44,940.40

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Solution

The fourth proportional to 127,986.80, 192,037.80 and 44,940.40 is: 67,430.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,986.80 : 192,037.80 = 44,940.40 : x
  2. Step 2: Convert to fraction form
    127,986.80/192,037.80 = 44,940.40/x
  3. Step 3: Cross multiply
    127,986.80x = 192,037.80 × 44,940.40
  4. Step 4: Simplify right side
    127,986.80x = 8,630,255,547.12
  5. Step 5: Solve for x
    x = 8,630,255,547.12/127,986.80
  6. Step 6: Final answer
    x = 67,430.83

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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.