Home / 102,399.94-153,534.03-43,219.72

Finding the Fourth Proportional to 102,399.94, 153,534.03 and 43,219.72

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Solution

The fourth proportional to 102,399.94, 153,534.03 and 43,219.72 is: 64,801.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,399.94 : 153,534.03 = 43,219.72 : x
  2. Step 2: Convert to fraction form
    102,399.94/153,534.03 = 43,219.72/x
  3. Step 3: Cross multiply
    102,399.94x = 153,534.03 × 43,219.72
  4. Step 4: Simplify right side
    102,399.94x = 6,635,697,787.07
  5. Step 5: Solve for x
    x = 6,635,697,787.07/102,399.94
  6. Step 6: Final answer
    x = 64,801.77

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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.