Home / 214,110.80-321,041.72-81,001.48

Finding the Fourth Proportional to 214,110.80, 321,041.72 and 81,001.48

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Solution

The fourth proportional to 214,110.80, 321,041.72 and 81,001.48 is: 121,455.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,110.80 : 321,041.72 = 81,001.48 : x
  2. Step 2: Convert to fraction form
    214,110.80/321,041.72 = 81,001.48/x
  3. Step 3: Cross multiply
    214,110.80x = 321,041.72 × 81,001.48
  4. Step 4: Simplify right side
    214,110.80x = 26,004,854,461.75
  5. Step 5: Solve for x
    x = 26,004,854,461.75/214,110.80
  6. Step 6: Final answer
    x = 121,455.13

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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.