Home / 143,430.12-197,900.90-82,999.24

Finding the Fourth Proportional to 143,430.12, 197,900.90 and 82,999.24

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Solution

The fourth proportional to 143,430.12, 197,900.90 and 82,999.24 is: 114,520.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,430.12 : 197,900.90 = 82,999.24 : x
  2. Step 2: Convert to fraction form
    143,430.12/197,900.90 = 82,999.24/x
  3. Step 3: Cross multiply
    143,430.12x = 197,900.90 × 82,999.24
  4. Step 4: Simplify right side
    143,430.12x = 16,425,624,295.32
  5. Step 5: Solve for x
    x = 16,425,624,295.32/143,430.12
  6. Step 6: Final answer
    x = 114,520.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.