Home / 127,142.48-190,564.92-84,971.60

Finding the Fourth Proportional to 127,142.48, 190,564.92 and 84,971.60

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Solution

The fourth proportional to 127,142.48, 190,564.92 and 84,971.60 is: 127,357.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,142.48 : 190,564.92 = 84,971.60 : x
  2. Step 2: Convert to fraction form
    127,142.48/190,564.92 = 84,971.60/x
  3. Step 3: Cross multiply
    127,142.48x = 190,564.92 × 84,971.60
  4. Step 4: Simplify right side
    127,142.48x = 16,192,606,156.27
  5. Step 5: Solve for x
    x = 16,192,606,156.27/127,142.48
  6. Step 6: Final answer
    x = 127,357.95

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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.