Home / 103,035.20-154,466.40-53,787.20

Finding the Fourth Proportional to 103,035.20, 154,466.40 and 53,787.20

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Solution

The fourth proportional to 103,035.20, 154,466.40 and 53,787.20 is: 80,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,035.20 : 154,466.40 = 53,787.20 : x
  2. Step 2: Convert to fraction form
    103,035.20/154,466.40 = 53,787.20/x
  3. Step 3: Cross multiply
    103,035.20x = 154,466.40 × 53,787.20
  4. Step 4: Simplify right side
    103,035.20x = 8,308,315,150.08
  5. Step 5: Solve for x
    x = 8,308,315,150.08/103,035.20
  6. Step 6: Final answer
    x = 80,635.70

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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.