Home / 345,756.95-518,635.41-109,118.09

Finding the Fourth Proportional to 345,756.95, 518,635.41 and 109,118.09

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Solution

The fourth proportional to 345,756.95, 518,635.41 and 109,118.09 is: 163,677.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,756.95 : 518,635.41 = 109,118.09 : x
  2. Step 2: Convert to fraction form
    345,756.95/518,635.41 = 109,118.09/x
  3. Step 3: Cross multiply
    345,756.95x = 518,635.41 × 109,118.09
  4. Step 4: Simplify right side
    345,756.95x = 56,592,503,315.64
  5. Step 5: Solve for x
    x = 56,592,503,315.64/345,756.95
  6. Step 6: Final answer
    x = 163,677.12

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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.