Home / 143,568.08-215,115.16-83,427.74

Finding the Fourth Proportional to 143,568.08, 215,115.16 and 83,427.74

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Solution

The fourth proportional to 143,568.08, 215,115.16 and 83,427.74 is: 125,003.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,568.08 : 215,115.16 = 83,427.74 : x
  2. Step 2: Convert to fraction form
    143,568.08/215,115.16 = 83,427.74/x
  3. Step 3: Cross multiply
    143,568.08x = 215,115.16 × 83,427.74
  4. Step 4: Simplify right side
    143,568.08x = 17,946,571,638.54
  5. Step 5: Solve for x
    x = 17,946,571,638.54/143,568.08
  6. Step 6: Final answer
    x = 125,003.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.