Home / 163,142.73-225,133.43-91,521.45

Finding the Fourth Proportional to 163,142.73, 225,133.43 and 91,521.45

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Solution

The fourth proportional to 163,142.73, 225,133.43 and 91,521.45 is: 126,297.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,142.73 : 225,133.43 = 91,521.45 : x
  2. Step 2: Convert to fraction form
    163,142.73/225,133.43 = 91,521.45/x
  3. Step 3: Cross multiply
    163,142.73x = 225,133.43 × 91,521.45
  4. Step 4: Simplify right side
    163,142.73x = 20,604,537,499.47
  5. Step 5: Solve for x
    x = 20,604,537,499.47/163,142.73
  6. Step 6: Final answer
    x = 126,297.61

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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.