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Finding the Fourth Proportional to 143,565, 215,349.32 and 50,070.75

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Solution

The fourth proportional to 143,565, 215,349.32 and 50,070.75 is: 75,106.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,565 : 215,349.32 = 50,070.75 : x
  2. Step 2: Convert to fraction form
    143,565/215,349.32 = 50,070.75/x
  3. Step 3: Cross multiply
    143,565x = 215,349.32 × 50,070.75
  4. Step 4: Simplify right side
    143,565x = 10,782,702,089.57
  5. Step 5: Solve for x
    x = 10,782,702,089.57/143,565
  6. Step 6: Final answer
    x = 75,106.76

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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.