Home / 214,312.05-321,059.79-133,130.61

Finding the Fourth Proportional to 214,312.05, 321,059.79 and 133,130.61

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Solution

The fourth proportional to 214,312.05, 321,059.79 and 133,130.61 is: 199,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,312.05 : 321,059.79 = 133,130.61 : x
  2. Step 2: Convert to fraction form
    214,312.05/321,059.79 = 133,130.61/x
  3. Step 3: Cross multiply
    214,312.05x = 321,059.79 × 133,130.61
  4. Step 4: Simplify right side
    214,312.05x = 42,742,885,689.17
  5. Step 5: Solve for x
    x = 42,742,885,689.17/214,312.05
  6. Step 6: Final answer
    x = 199,442.29

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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.