Home / 144,390.40-199,178.75-83,954.36

Finding the Fourth Proportional to 144,390.40, 199,178.75 and 83,954.36

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Solution

The fourth proportional to 144,390.40, 199,178.75 and 83,954.36 is: 115,810.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,390.40 : 199,178.75 = 83,954.36 : x
  2. Step 2: Convert to fraction form
    144,390.40/199,178.75 = 83,954.36/x
  3. Step 3: Cross multiply
    144,390.40x = 199,178.75 × 83,954.36
  4. Step 4: Simplify right side
    144,390.40x = 16,721,924,481.85
  5. Step 5: Solve for x
    x = 16,721,924,481.85/144,390.40
  6. Step 6: Final answer
    x = 115,810.50

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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.