Home / 144,828.78-199,871.61-81,187.02

Finding the Fourth Proportional to 144,828.78, 199,871.61 and 81,187.02

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Solution

The fourth proportional to 144,828.78, 199,871.61 and 81,187.02 is: 112,042.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,828.78 : 199,871.61 = 81,187.02 : x
  2. Step 2: Convert to fraction form
    144,828.78/199,871.61 = 81,187.02/x
  3. Step 3: Cross multiply
    144,828.78x = 199,871.61 × 81,187.02
  4. Step 4: Simplify right side
    144,828.78x = 16,226,980,398.50
  5. Step 5: Solve for x
    x = 16,226,980,398.50/144,828.78
  6. Step 6: Final answer
    x = 112,042.51

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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.