Home / 143,257.80-214,737.24-79,985.18

Finding the Fourth Proportional to 143,257.80, 214,737.24 and 79,985.18

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Solution

The fourth proportional to 143,257.80, 214,737.24 and 79,985.18 is: 119,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,257.80 : 214,737.24 = 79,985.18 : x
  2. Step 2: Convert to fraction form
    143,257.80/214,737.24 = 79,985.18/x
  3. Step 3: Cross multiply
    143,257.80x = 214,737.24 × 79,985.18
  4. Step 4: Simplify right side
    143,257.80x = 17,175,796,794.10
  5. Step 5: Solve for x
    x = 17,175,796,794.10/143,257.80
  6. Step 6: Final answer
    x = 119,894.32

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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.