Home / 125,529.78-173,145.12-80,187.63

Finding the Fourth Proportional to 125,529.78, 173,145.12 and 80,187.63

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Solution

The fourth proportional to 125,529.78, 173,145.12 and 80,187.63 is: 110,604.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,529.78 : 173,145.12 = 80,187.63 : x
  2. Step 2: Convert to fraction form
    125,529.78/173,145.12 = 80,187.63/x
  3. Step 3: Cross multiply
    125,529.78x = 173,145.12 × 80,187.63
  4. Step 4: Simplify right side
    125,529.78x = 13,884,096,818.87
  5. Step 5: Solve for x
    x = 13,884,096,818.87/125,529.78
  6. Step 6: Final answer
    x = 110,604.01

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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.