Home / 143,132.70-214,699.05-80,147.10

Finding the Fourth Proportional to 143,132.70, 214,699.05 and 80,147.10

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Solution

The fourth proportional to 143,132.70, 214,699.05 and 80,147.10 is: 120,220.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,132.70 : 214,699.05 = 80,147.10 : x
  2. Step 2: Convert to fraction form
    143,132.70/214,699.05 = 80,147.10/x
  3. Step 3: Cross multiply
    143,132.70x = 214,699.05 × 80,147.10
  4. Step 4: Simplify right side
    143,132.70x = 17,207,506,230.26
  5. Step 5: Solve for x
    x = 17,207,506,230.26/143,132.70
  6. Step 6: Final answer
    x = 120,220.65

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1.5x scale

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.