Home / 161,920.97-242,668.21-90,842.25

Finding the Fourth Proportional to 161,920.97, 242,668.21 and 90,842.25

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Solution

The fourth proportional to 161,920.97, 242,668.21 and 90,842.25 is: 136,143.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,920.97 : 242,668.21 = 90,842.25 : x
  2. Step 2: Convert to fraction form
    161,920.97/242,668.21 = 90,842.25/x
  3. Step 3: Cross multiply
    161,920.97x = 242,668.21 × 90,842.25
  4. Step 4: Simplify right side
    161,920.97x = 22,044,526,199.87
  5. Step 5: Solve for x
    x = 22,044,526,199.87/161,920.97
  6. Step 6: Final answer
    x = 136,143.74

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1.5x scale

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.