Home / 213,985.07-321,026.81-64,228.20

Finding the Fourth Proportional to 213,985.07, 321,026.81 and 64,228.20

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Solution

The fourth proportional to 213,985.07, 321,026.81 and 64,228.20 is: 96,357.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,985.07 : 321,026.81 = 64,228.20 : x
  2. Step 2: Convert to fraction form
    213,985.07/321,026.81 = 64,228.20/x
  3. Step 3: Cross multiply
    213,985.07x = 321,026.81 × 64,228.20
  4. Step 4: Simplify right side
    213,985.07x = 20,618,973,228.62
  5. Step 5: Solve for x
    x = 20,618,973,228.62/213,985.07
  6. Step 6: Final answer
    x = 96,357.06

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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.