Home / 143,894.10-215,718.08-55,211.25

Finding the Fourth Proportional to 143,894.10, 215,718.08 and 55,211.25

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Solution

The fourth proportional to 143,894.10, 215,718.08 and 55,211.25 is: 82,769.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,894.10 : 215,718.08 = 55,211.25 : x
  2. Step 2: Convert to fraction form
    143,894.10/215,718.08 = 55,211.25/x
  3. Step 3: Cross multiply
    143,894.10x = 215,718.08 × 55,211.25
  4. Step 4: Simplify right side
    143,894.10x = 11,910,064,844.40
  5. Step 5: Solve for x
    x = 11,910,064,844.40/143,894.10
  6. Step 6: Final answer
    x = 82,769.65

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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.