Home / 120,583.32-166,480.22-77,637.27

Finding the Fourth Proportional to 120,583.32, 166,480.22 and 77,637.27

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Solution

The fourth proportional to 120,583.32, 166,480.22 and 77,637.27 is: 107,187.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,583.32 : 166,480.22 = 77,637.27 : x
  2. Step 2: Convert to fraction form
    120,583.32/166,480.22 = 77,637.27/x
  3. Step 3: Cross multiply
    120,583.32x = 166,480.22 × 77,637.27
  4. Step 4: Simplify right side
    120,583.32x = 12,925,069,789.80
  5. Step 5: Solve for x
    x = 12,925,069,789.80/120,583.32
  6. Step 6: Final answer
    x = 107,187.87

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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.