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Finding the Fourth Proportional to 143,505.66, 215,266.58 and 43,669.10

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Solution

The fourth proportional to 143,505.66, 215,266.58 and 43,669.10 is: 65,506.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,505.66 : 215,266.58 = 43,669.10 : x
  2. Step 2: Convert to fraction form
    143,505.66/215,266.58 = 43,669.10/x
  3. Step 3: Cross multiply
    143,505.66x = 215,266.58 × 43,669.10
  4. Step 4: Simplify right side
    143,505.66x = 9,400,497,808.68
  5. Step 5: Solve for x
    x = 9,400,497,808.68/143,505.66
  6. Step 6: Final answer
    x = 65,506.11

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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.