Home / 144,890.69-199,949.02-81,228.50

Finding the Fourth Proportional to 144,890.69, 199,949.02 and 81,228.50

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Solution

The fourth proportional to 144,890.69, 199,949.02 and 81,228.50 is: 112,095.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,890.69 : 199,949.02 = 81,228.50 : x
  2. Step 2: Convert to fraction form
    144,890.69/199,949.02 = 81,228.50/x
  3. Step 3: Cross multiply
    144,890.69x = 199,949.02 × 81,228.50
  4. Step 4: Simplify right side
    144,890.69x = 16,241,559,572.48
  5. Step 5: Solve for x
    x = 16,241,559,572.48/144,890.69
  6. Step 6: Final answer
    x = 112,095.26

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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.