Home / 203,787.36-305,127-119,423.16

Finding the Fourth Proportional to 203,787.36, 305,127 and 119,423.16

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Solution

The fourth proportional to 203,787.36, 305,127 and 119,423.16 is: 178,810.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,787.36 : 305,127 = 119,423.16 : x
  2. Step 2: Convert to fraction form
    203,787.36/305,127 = 119,423.16/x
  3. Step 3: Cross multiply
    203,787.36x = 305,127 × 119,423.16
  4. Step 4: Simplify right side
    203,787.36x = 36,439,230,541.32
  5. Step 5: Solve for x
    x = 36,439,230,541.32/203,787.36
  6. Step 6: Final answer
    x = 178,810.06

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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.