Home / 135,058.96-186,417.52-77,704.80

Finding the Fourth Proportional to 135,058.96, 186,417.52 and 77,704.80

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Solution

The fourth proportional to 135,058.96, 186,417.52 and 77,704.80 is: 107,253.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,058.96 : 186,417.52 = 77,704.80 : x
  2. Step 2: Convert to fraction form
    135,058.96/186,417.52 = 77,704.80/x
  3. Step 3: Cross multiply
    135,058.96x = 186,417.52 × 77,704.80
  4. Step 4: Simplify right side
    135,058.96x = 14,485,536,108.10
  5. Step 5: Solve for x
    x = 14,485,536,108.10/135,058.96
  6. Step 6: Final answer
    x = 107,253.43

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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.