Home / 161,695.18-221,523.47-155,634.72

Finding the Fourth Proportional to 161,695.18, 221,523.47 and 155,634.72

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Solution

The fourth proportional to 161,695.18, 221,523.47 and 155,634.72 is: 213,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,695.18 : 221,523.47 = 155,634.72 : x
  2. Step 2: Convert to fraction form
    161,695.18/221,523.47 = 155,634.72/x
  3. Step 3: Cross multiply
    161,695.18x = 221,523.47 × 155,634.72
  4. Step 4: Simplify right side
    161,695.18x = 34,476,743,615.97
  5. Step 5: Solve for x
    x = 34,476,743,615.97/161,695.18
  6. Step 6: Final answer
    x = 213,220.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.