Home / 147,279.93-203,239.07-83,609.37

Finding the Fourth Proportional to 147,279.93, 203,239.07 and 83,609.37

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Solution

The fourth proportional to 147,279.93, 203,239.07 and 83,609.37 is: 115,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,279.93 : 203,239.07 = 83,609.37 : x
  2. Step 2: Convert to fraction form
    147,279.93/203,239.07 = 83,609.37/x
  3. Step 3: Cross multiply
    147,279.93x = 203,239.07 × 83,609.37
  4. Step 4: Simplify right side
    147,279.93x = 16,992,690,184.04
  5. Step 5: Solve for x
    x = 16,992,690,184.04/147,279.93
  6. Step 6: Final answer
    x = 115,376.82

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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.