Home / 214,370.40-321,374.16-81,177.24

Finding the Fourth Proportional to 214,370.40, 321,374.16 and 81,177.24

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Solution

The fourth proportional to 214,370.40, 321,374.16 and 81,177.24 is: 121,697.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,370.40 : 321,374.16 = 81,177.24 : x
  2. Step 2: Convert to fraction form
    214,370.40/321,374.16 = 81,177.24/x
  3. Step 3: Cross multiply
    214,370.40x = 321,374.16 × 81,177.24
  4. Step 4: Simplify right side
    214,370.40x = 26,088,267,316.12
  5. Step 5: Solve for x
    x = 26,088,267,316.12/214,370.40
  6. Step 6: Final answer
    x = 121,697.15

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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.