Home / 134,587.89-185,733.49-74,157.66

Finding the Fourth Proportional to 134,587.89, 185,733.49 and 74,157.66

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Solution

The fourth proportional to 134,587.89, 185,733.49 and 74,157.66 is: 102,338.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,587.89 : 185,733.49 = 74,157.66 : x
  2. Step 2: Convert to fraction form
    134,587.89/185,733.49 = 74,157.66/x
  3. Step 3: Cross multiply
    134,587.89x = 185,733.49 × 74,157.66
  4. Step 4: Simplify right side
    134,587.89x = 13,773,560,073.37
  5. Step 5: Solve for x
    x = 13,773,560,073.37/134,587.89
  6. Step 6: Final answer
    x = 102,338.78

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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.