Home / 144,890.67-199,948.86-81,228.45

Finding the Fourth Proportional to 144,890.67, 199,948.86 and 81,228.45

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Solution

The fourth proportional to 144,890.67, 199,948.86 and 81,228.45 is: 112,095.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,890.67 : 199,948.86 = 81,228.45 : x
  2. Step 2: Convert to fraction form
    144,890.67/199,948.86 = 81,228.45/x
  3. Step 3: Cross multiply
    144,890.67x = 199,948.86 × 81,228.45
  4. Step 4: Simplify right side
    144,890.67x = 16,241,535,977.07
  5. Step 5: Solve for x
    x = 16,241,535,977.07/144,890.67
  6. Step 6: Final answer
    x = 112,095.11

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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.