Home / 147,278.43-203,237.00-83,607.87

Finding the Fourth Proportional to 147,278.43, 203,237.00 and 83,607.87

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Solution

The fourth proportional to 147,278.43, 203,237.00 and 83,607.87 is: 115,374.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,278.43 : 203,237.00 = 83,607.87 : x
  2. Step 2: Convert to fraction form
    147,278.43/203,237.00 = 83,607.87/x
  3. Step 3: Cross multiply
    147,278.43x = 203,237.00 × 83,607.87
  4. Step 4: Simplify right side
    147,278.43x = 16,992,212,257.15
  5. Step 5: Solve for x
    x = 16,992,212,257.15/147,278.43
  6. Step 6: Final answer
    x = 115,374.75

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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.