Home / 143,534.10-215,276.31-43,670.10

Finding the Fourth Proportional to 143,534.10, 215,276.31 and 43,670.10

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Solution

The fourth proportional to 143,534.10, 215,276.31 and 43,670.10 is: 65,497.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,534.10 : 215,276.31 = 43,670.10 : x
  2. Step 2: Convert to fraction form
    143,534.10/215,276.31 = 43,670.10/x
  3. Step 3: Cross multiply
    143,534.10x = 215,276.31 × 43,670.10
  4. Step 4: Simplify right side
    143,534.10x = 9,401,137,985.33
  5. Step 5: Solve for x
    x = 9,401,137,985.33/143,534.10
  6. Step 6: Final answer
    x = 65,497.59

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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.