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Finding the Fourth Proportional to 143,506.66, 215,268.08 and 43,670.10

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Solution

The fourth proportional to 143,506.66, 215,268.08 and 43,670.10 is: 65,507.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,506.66 : 215,268.08 = 43,670.10 : x
  2. Step 2: Convert to fraction form
    143,506.66/215,268.08 = 43,670.10/x
  3. Step 3: Cross multiply
    143,506.66x = 215,268.08 × 43,670.10
  4. Step 4: Simplify right side
    143,506.66x = 9,400,778,580.41
  5. Step 5: Solve for x
    x = 9,400,778,580.41/143,506.66
  6. Step 6: Final answer
    x = 65,507.61

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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.