Home / 154,366.59-212,821.70-111,310.05

Finding the Fourth Proportional to 154,366.59, 212,821.70 and 111,310.05

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Solution

The fourth proportional to 154,366.59, 212,821.70 and 111,310.05 is: 153,460.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,366.59 : 212,821.70 = 111,310.05 : x
  2. Step 2: Convert to fraction form
    154,366.59/212,821.70 = 111,310.05/x
  3. Step 3: Cross multiply
    154,366.59x = 212,821.70 × 111,310.05
  4. Step 4: Simplify right side
    154,366.59x = 23,689,193,511.53
  5. Step 5: Solve for x
    x = 23,689,193,511.53/154,366.59
  6. Step 6: Final answer
    x = 153,460.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.