Home / 145,909.73-201,449.12-91,536.43

Finding the Fourth Proportional to 145,909.73, 201,449.12 and 91,536.43

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Solution

The fourth proportional to 145,909.73, 201,449.12 and 91,536.43 is: 126,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,909.73 : 201,449.12 = 91,536.43 : x
  2. Step 2: Convert to fraction form
    145,909.73/201,449.12 = 91,536.43/x
  3. Step 3: Cross multiply
    145,909.73x = 201,449.12 × 91,536.43
  4. Step 4: Simplify right side
    145,909.73x = 18,439,932,538.98
  5. Step 5: Solve for x
    x = 18,439,932,538.98/145,909.73
  6. Step 6: Final answer
    x = 126,379.05

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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.