Home / 231,214.47-346,827.87-81,420.72

Finding the Fourth Proportional to 231,214.47, 346,827.87 and 81,420.72

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Solution

The fourth proportional to 231,214.47, 346,827.87 and 81,420.72 is: 122,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,214.47 : 346,827.87 = 81,420.72 : x
  2. Step 2: Convert to fraction form
    231,214.47/346,827.87 = 81,420.72/x
  3. Step 3: Cross multiply
    231,214.47x = 346,827.87 × 81,420.72
  4. Step 4: Simplify right side
    231,214.47x = 28,238,974,891.47
  5. Step 5: Solve for x
    x = 28,238,974,891.47/231,214.47
  6. Step 6: Final answer
    x = 122,133.25

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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.