Home / 145,637.01-200,966.26-81,101.37

Finding the Fourth Proportional to 145,637.01, 200,966.26 and 81,101.37

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Solution

The fourth proportional to 145,637.01, 200,966.26 and 81,101.37 is: 111,912.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,637.01 : 200,966.26 = 81,101.37 : x
  2. Step 2: Convert to fraction form
    145,637.01/200,966.26 = 81,101.37/x
  3. Step 3: Cross multiply
    145,637.01x = 200,966.26 × 81,101.37
  4. Step 4: Simplify right side
    145,637.01x = 16,298,639,009.78
  5. Step 5: Solve for x
    x = 16,298,639,009.78/145,637.01
  6. Step 6: Final answer
    x = 111,912.75

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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.