Home / 97,727.81-146,444.09-72,650.21

Finding the Fourth Proportional to 97,727.81, 146,444.09 and 72,650.21

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Solution

The fourth proportional to 97,727.81, 146,444.09 and 72,650.21 is: 108,865.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,727.81 : 146,444.09 = 72,650.21 : x
  2. Step 2: Convert to fraction form
    97,727.81/146,444.09 = 72,650.21/x
  3. Step 3: Cross multiply
    97,727.81x = 146,444.09 × 72,650.21
  4. Step 4: Simplify right side
    97,727.81x = 10,639,192,796.29
  5. Step 5: Solve for x
    x = 10,639,192,796.29/97,727.81
  6. Step 6: Final answer
    x = 108,865.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.