Home / 145,835.82-201,252.22-81,304.31

Finding the Fourth Proportional to 145,835.82, 201,252.22 and 81,304.31

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Solution

The fourth proportional to 145,835.82, 201,252.22 and 81,304.31 is: 112,199.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,835.82 : 201,252.22 = 81,304.31 : x
  2. Step 2: Convert to fraction form
    145,835.82/201,252.22 = 81,304.31/x
  3. Step 3: Cross multiply
    145,835.82x = 201,252.22 × 81,304.31
  4. Step 4: Simplify right side
    145,835.82x = 16,362,673,182.94
  5. Step 5: Solve for x
    x = 16,362,673,182.94/145,835.82
  6. Step 6: Final answer
    x = 112,199.27

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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.