Home / 127,985.40-191,982.96-49,107.60

Finding the Fourth Proportional to 127,985.40, 191,982.96 and 49,107.60

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Solution

The fourth proportional to 127,985.40, 191,982.96 and 49,107.60 is: 73,663.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,985.40 : 191,982.96 = 49,107.60 : x
  2. Step 2: Convert to fraction form
    127,985.40/191,982.96 = 49,107.60/x
  3. Step 3: Cross multiply
    127,985.40x = 191,982.96 × 49,107.60
  4. Step 4: Simplify right side
    127,985.40x = 9,427,822,406.50
  5. Step 5: Solve for x
    x = 9,427,822,406.50/127,985.40
  6. Step 6: Final answer
    x = 73,663.26

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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.