Home / 143,165.20-214,747.80-135,000.40

Finding the Fourth Proportional to 143,165.20, 214,747.80 and 135,000.40

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Solution

The fourth proportional to 143,165.20, 214,747.80 and 135,000.40 is: 202,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,165.20 : 214,747.80 = 135,000.40 : x
  2. Step 2: Convert to fraction form
    143,165.20/214,747.80 = 135,000.40/x
  3. Step 3: Cross multiply
    143,165.20x = 214,747.80 × 135,000.40
  4. Step 4: Simplify right side
    143,165.20x = 28,991,038,899.12
  5. Step 5: Solve for x
    x = 28,991,038,899.12/143,165.20
  6. Step 6: Final answer
    x = 202,500.60

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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.