Home / 163,233.51-225,273-91,618.38

Finding the Fourth Proportional to 163,233.51, 225,273 and 91,618.38

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Solution

The fourth proportional to 163,233.51, 225,273 and 91,618.38 is: 126,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,233.51 : 225,273 = 91,618.38 : x
  2. Step 2: Convert to fraction form
    163,233.51/225,273 = 91,618.38/x
  3. Step 3: Cross multiply
    163,233.51x = 225,273 × 91,618.38
  4. Step 4: Simplify right side
    163,233.51x = 20,639,147,317.74
  5. Step 5: Solve for x
    x = 20,639,147,317.74/163,233.51
  6. Step 6: Final answer
    x = 126,439.40

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1.5x scale

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.