Home / 214,211.76-321,243.51-87,816.12

Finding the Fourth Proportional to 214,211.76, 321,243.51 and 87,816.12

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Solution

The fourth proportional to 214,211.76, 321,243.51 and 87,816.12 is: 131,693.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,211.76 : 321,243.51 = 87,816.12 : x
  2. Step 2: Convert to fraction form
    214,211.76/321,243.51 = 87,816.12/x
  3. Step 3: Cross multiply
    214,211.76x = 321,243.51 × 87,816.12
  4. Step 4: Simplify right side
    214,211.76x = 28,210,358,623.38
  5. Step 5: Solve for x
    x = 28,210,358,623.38/214,211.76
  6. Step 6: Final answer
    x = 131,693.79

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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.