Home / 199,395.60-275,010.34-127,782.28

Finding the Fourth Proportional to 199,395.60, 275,010.34 and 127,782.28

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Solution

The fourth proportional to 199,395.60, 275,010.34 and 127,782.28 is: 176,239.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,395.60 : 275,010.34 = 127,782.28 : x
  2. Step 2: Convert to fraction form
    199,395.60/275,010.34 = 127,782.28/x
  3. Step 3: Cross multiply
    199,395.60x = 275,010.34 × 127,782.28
  4. Step 4: Simplify right side
    199,395.60x = 35,141,448,268.78
  5. Step 5: Solve for x
    x = 35,141,448,268.78/199,395.60
  6. Step 6: Final answer
    x = 176,239.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.