Home / 143,290.09-214,931.49-68,463.10

Finding the Fourth Proportional to 143,290.09, 214,931.49 and 68,463.10

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Solution

The fourth proportional to 143,290.09, 214,931.49 and 68,463.10 is: 102,692.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,290.09 : 214,931.49 = 68,463.10 : x
  2. Step 2: Convert to fraction form
    143,290.09/214,931.49 = 68,463.10/x
  3. Step 3: Cross multiply
    143,290.09x = 214,931.49 × 68,463.10
  4. Step 4: Simplify right side
    143,290.09x = 14,714,876,093.02
  5. Step 5: Solve for x
    x = 14,714,876,093.02/143,290.09
  6. Step 6: Final answer
    x = 102,692.91

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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.