Home / 144,885.11-199,959.23-91,172.39

Finding the Fourth Proportional to 144,885.11, 199,959.23 and 91,172.39

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Solution

The fourth proportional to 144,885.11, 199,959.23 and 91,172.39 is: 125,829.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,885.11 : 199,959.23 = 91,172.39 : x
  2. Step 2: Convert to fraction form
    144,885.11/199,959.23 = 91,172.39/x
  3. Step 3: Cross multiply
    144,885.11x = 199,959.23 × 91,172.39
  4. Step 4: Simplify right side
    144,885.11x = 18,230,760,129.79
  5. Step 5: Solve for x
    x = 18,230,760,129.79/144,885.11
  6. Step 6: Final answer
    x = 125,829.08

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1.5x scale

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.