Home / 143,612.80-215,450.24-43,770.40

Finding the Fourth Proportional to 143,612.80, 215,450.24 and 43,770.40

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Solution

The fourth proportional to 143,612.80, 215,450.24 and 43,770.40 is: 65,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,612.80 : 215,450.24 = 43,770.40 : x
  2. Step 2: Convert to fraction form
    143,612.80/215,450.24 = 43,770.40/x
  3. Step 3: Cross multiply
    143,612.80x = 215,450.24 × 43,770.40
  4. Step 4: Simplify right side
    143,612.80x = 9,430,343,184.90
  5. Step 5: Solve for x
    x = 9,430,343,184.90/143,612.80
  6. Step 6: Final answer
    x = 65,665.06

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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.