Home / 127,928.10-191,730.15-48,936.90

Finding the Fourth Proportional to 127,928.10, 191,730.15 and 48,936.90

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Solution

The fourth proportional to 127,928.10, 191,730.15 and 48,936.90 is: 73,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,928.10 : 191,730.15 = 48,936.90 : x
  2. Step 2: Convert to fraction form
    127,928.10/191,730.15 = 48,936.90/x
  3. Step 3: Cross multiply
    127,928.10x = 191,730.15 × 48,936.90
  4. Step 4: Simplify right side
    127,928.10x = 9,382,679,177.54
  5. Step 5: Solve for x
    x = 9,382,679,177.54/127,928.10
  6. Step 6: Final answer
    x = 73,343.38

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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.