Home / 147,158.18-203,072.32-83,494.62

Finding the Fourth Proportional to 147,158.18, 203,072.32 and 83,494.62

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Solution

The fourth proportional to 147,158.18, 203,072.32 and 83,494.62 is: 115,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,158.18 : 203,072.32 = 83,494.62 : x
  2. Step 2: Convert to fraction form
    147,158.18/203,072.32 = 83,494.62/x
  3. Step 3: Cross multiply
    147,158.18x = 203,072.32 × 83,494.62
  4. Step 4: Simplify right side
    147,158.18x = 16,955,446,190.92
  5. Step 5: Solve for x
    x = 16,955,446,190.92/147,158.18
  6. Step 6: Final answer
    x = 115,219.19

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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.