Home / 145,455.26-200,726.94-81,793.51

Finding the Fourth Proportional to 145,455.26, 200,726.94 and 81,793.51

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Solution

The fourth proportional to 145,455.26, 200,726.94 and 81,793.51 is: 112,874.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,455.26 : 200,726.94 = 81,793.51 : x
  2. Step 2: Convert to fraction form
    145,455.26/200,726.94 = 81,793.51/x
  3. Step 3: Cross multiply
    145,455.26x = 200,726.94 × 81,793.51
  4. Step 4: Simplify right side
    145,455.26x = 16,418,159,561.56
  5. Step 5: Solve for x
    x = 16,418,159,561.56/145,455.26
  6. Step 6: Final answer
    x = 112,874.30

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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.