Home / 143,403.03-215,109-48,631.80

Finding the Fourth Proportional to 143,403.03, 215,109 and 48,631.80

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Solution

The fourth proportional to 143,403.03, 215,109 and 48,631.80 is: 72,949.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,403.03 : 215,109 = 48,631.80 : x
  2. Step 2: Convert to fraction form
    143,403.03/215,109 = 48,631.80/x
  3. Step 3: Cross multiply
    143,403.03x = 215,109 × 48,631.80
  4. Step 4: Simplify right side
    143,403.03x = 10,461,137,866.20
  5. Step 5: Solve for x
    x = 10,461,137,866.20/143,403.03
  6. Step 6: Final answer
    x = 72,949.21

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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.