Home / 345,677.18-518,591.88-105,792.92

Finding the Fourth Proportional to 345,677.18, 518,591.88 and 105,792.92

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Solution

The fourth proportional to 345,677.18, 518,591.88 and 105,792.92 is: 158,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,677.18 : 518,591.88 = 105,792.92 : x
  2. Step 2: Convert to fraction form
    345,677.18/518,591.88 = 105,792.92/x
  3. Step 3: Cross multiply
    345,677.18x = 518,591.88 × 105,792.92
  4. Step 4: Simplify right side
    345,677.18x = 54,863,349,273.49
  5. Step 5: Solve for x
    x = 54,863,349,273.49/345,677.18
  6. Step 6: Final answer
    x = 158,712.67

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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.