Home / 127,720.80-191,574.72-48,828.96

Finding the Fourth Proportional to 127,720.80, 191,574.72 and 48,828.96

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Solution

The fourth proportional to 127,720.80, 191,574.72 and 48,828.96 is: 73,240.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,720.80 : 191,574.72 = 48,828.96 : x
  2. Step 2: Convert to fraction form
    127,720.80/191,574.72 = 48,828.96/x
  3. Step 3: Cross multiply
    127,720.80x = 191,574.72 × 48,828.96
  4. Step 4: Simplify right side
    127,720.80x = 9,354,394,339.89
  5. Step 5: Solve for x
    x = 9,354,394,339.89/127,720.80
  6. Step 6: Final answer
    x = 73,240.96

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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.