Home / 161,693.74-221,521.49-155,633.30

Finding the Fourth Proportional to 161,693.74, 221,521.49 and 155,633.30

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Solution

The fourth proportional to 161,693.74, 221,521.49 and 155,633.30 is: 213,218.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,693.74 : 221,521.49 = 155,633.30 : x
  2. Step 2: Convert to fraction form
    161,693.74/221,521.49 = 155,633.30/x
  3. Step 3: Cross multiply
    161,693.74x = 221,521.49 × 155,633.30
  4. Step 4: Simplify right side
    161,693.74x = 34,476,120,509.62
  5. Step 5: Solve for x
    x = 34,476,120,509.62/161,693.74
  6. Step 6: Final answer
    x = 213,218.65

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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.