Home / 147,139.32-203,038.21-82,593.77

Finding the Fourth Proportional to 147,139.32, 203,038.21 and 82,593.77

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Solution

The fourth proportional to 147,139.32, 203,038.21 and 82,593.77 is: 113,971.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,139.32 : 203,038.21 = 82,593.77 : x
  2. Step 2: Convert to fraction form
    147,139.32/203,038.21 = 82,593.77/x
  3. Step 3: Cross multiply
    147,139.32x = 203,038.21 × 82,593.77
  4. Step 4: Simplify right side
    147,139.32x = 16,769,691,217.95
  5. Step 5: Solve for x
    x = 16,769,691,217.95/147,139.32
  6. Step 6: Final answer
    x = 113,971.52

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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.