Home / 144,889.48-199,957.08-81,231.40

Finding the Fourth Proportional to 144,889.48, 199,957.08 and 81,231.40

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Solution

The fourth proportional to 144,889.48, 199,957.08 and 81,231.40 is: 112,104.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,889.48 : 199,957.08 = 81,231.40 : x
  2. Step 2: Convert to fraction form
    144,889.48/199,957.08 = 81,231.40/x
  3. Step 3: Cross multiply
    144,889.48x = 199,957.08 × 81,231.40
  4. Step 4: Simplify right side
    144,889.48x = 16,242,793,548.31
  5. Step 5: Solve for x
    x = 16,242,793,548.31/144,889.48
  6. Step 6: Final answer
    x = 112,104.71

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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.