Home / 134,305.56-185,319.90-77,706

Finding the Fourth Proportional to 134,305.56, 185,319.90 and 77,706

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Solution

The fourth proportional to 134,305.56, 185,319.90 and 77,706 is: 107,221.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,305.56 : 185,319.90 = 77,706 : x
  2. Step 2: Convert to fraction form
    134,305.56/185,319.90 = 77,706/x
  3. Step 3: Cross multiply
    134,305.56x = 185,319.90 × 77,706
  4. Step 4: Simplify right side
    134,305.56x = 14,400,468,149.40
  5. Step 5: Solve for x
    x = 14,400,468,149.40/134,305.56
  6. Step 6: Final answer
    x = 107,221.68

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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.