Home / 143,630.20-215,312.46-73,354.60

Finding the Fourth Proportional to 143,630.20, 215,312.46 and 73,354.60

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Solution

The fourth proportional to 143,630.20, 215,312.46 and 73,354.60 is: 109,964.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,630.20 : 215,312.46 = 73,354.60 : x
  2. Step 2: Convert to fraction form
    143,630.20/215,312.46 = 73,354.60/x
  3. Step 3: Cross multiply
    143,630.20x = 215,312.46 × 73,354.60
  4. Step 4: Simplify right side
    143,630.20x = 15,794,159,378.32
  5. Step 5: Solve for x
    x = 15,794,159,378.32/143,630.20
  6. Step 6: Final answer
    x = 109,964.06

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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.