Home / 147,434.04-203,451.30-83,763

Finding the Fourth Proportional to 147,434.04, 203,451.30 and 83,763

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Solution

The fourth proportional to 147,434.04, 203,451.30 and 83,763 is: 115,588.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,434.04 : 203,451.30 = 83,763 : x
  2. Step 2: Convert to fraction form
    147,434.04/203,451.30 = 83,763/x
  3. Step 3: Cross multiply
    147,434.04x = 203,451.30 × 83,763
  4. Step 4: Simplify right side
    147,434.04x = 17,041,691,241.90
  5. Step 5: Solve for x
    x = 17,041,691,241.90/147,434.04
  6. Step 6: Final answer
    x = 115,588.58

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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.