Home / 154,495.20-231,915.60-144,343.20

Finding the Fourth Proportional to 154,495.20, 231,915.60 and 144,343.20

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Solution

The fourth proportional to 154,495.20, 231,915.60 and 144,343.20 is: 216,676.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,495.20 : 231,915.60 = 144,343.20 : x
  2. Step 2: Convert to fraction form
    154,495.20/231,915.60 = 144,343.20/x
  3. Step 3: Cross multiply
    154,495.20x = 231,915.60 × 144,343.20
  4. Step 4: Simplify right side
    154,495.20x = 33,475,439,833.92
  5. Step 5: Solve for x
    x = 33,475,439,833.92/154,495.20
  6. Step 6: Final answer
    x = 216,676.25

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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.