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Finding the Fourth Proportional to 144,730.84, 199,826.03 and 90,365.79

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Solution

The fourth proportional to 144,730.84, 199,826.03 and 90,365.79 is: 124,765.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,730.84 : 199,826.03 = 90,365.79 : x
  2. Step 2: Convert to fraction form
    144,730.84/199,826.03 = 90,365.79/x
  3. Step 3: Cross multiply
    144,730.84x = 199,826.03 × 90,365.79
  4. Step 4: Simplify right side
    144,730.84x = 18,057,437,063.51
  5. Step 5: Solve for x
    x = 18,057,437,063.51/144,730.84
  6. Step 6: Final answer
    x = 124,765.65

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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.