Home / 345,882.12-518,784.28-93,181.28

Finding the Fourth Proportional to 345,882.12, 518,784.28 and 93,181.28

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Solution

The fourth proportional to 345,882.12, 518,784.28 and 93,181.28 is: 139,761.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,882.12 : 518,784.28 = 93,181.28 : x
  2. Step 2: Convert to fraction form
    345,882.12/518,784.28 = 93,181.28/x
  3. Step 3: Cross multiply
    345,882.12x = 518,784.28 × 93,181.28
  4. Step 4: Simplify right side
    345,882.12x = 48,340,983,254.28
  5. Step 5: Solve for x
    x = 48,340,983,254.28/345,882.12
  6. Step 6: Final answer
    x = 139,761.44

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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.