Home / 134,890.38-186,157.04-77,548.05

Finding the Fourth Proportional to 134,890.38, 186,157.04 and 77,548.05

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Solution

The fourth proportional to 134,890.38, 186,157.04 and 77,548.05 is: 107,021.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,890.38 : 186,157.04 = 77,548.05 : x
  2. Step 2: Convert to fraction form
    134,890.38/186,157.04 = 77,548.05/x
  3. Step 3: Cross multiply
    134,890.38x = 186,157.04 × 77,548.05
  4. Step 4: Simplify right side
    134,890.38x = 14,436,115,058.03
  5. Step 5: Solve for x
    x = 14,436,115,058.03/134,890.38
  6. Step 6: Final answer
    x = 107,021.09

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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.