Home / 345,087.16-517,713.66-108,429.67

Finding the Fourth Proportional to 345,087.16, 517,713.66 and 108,429.67

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Solution

The fourth proportional to 345,087.16, 517,713.66 and 108,429.67 is: 162,670.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,087.16 : 517,713.66 = 108,429.67 : x
  2. Step 2: Convert to fraction form
    345,087.16/517,713.66 = 108,429.67/x
  3. Step 3: Cross multiply
    345,087.16x = 517,713.66 × 108,429.67
  4. Step 4: Simplify right side
    345,087.16x = 56,135,521,308.29
  5. Step 5: Solve for x
    x = 56,135,521,308.29/345,087.16
  6. Step 6: Final answer
    x = 162,670.56

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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.