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Finding the Fourth Proportional to 157,051.90, 235,318.65 and 133,723.90

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Solution

The fourth proportional to 157,051.90, 235,318.65 and 133,723.90 is: 200,365.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,051.90 : 235,318.65 = 133,723.90 : x
  2. Step 2: Convert to fraction form
    157,051.90/235,318.65 = 133,723.90/x
  3. Step 3: Cross multiply
    157,051.90x = 235,318.65 × 133,723.90
  4. Step 4: Simplify right side
    157,051.90x = 31,467,727,620.74
  5. Step 5: Solve for x
    x = 31,467,727,620.74/157,051.90
  6. Step 6: Final answer
    x = 200,365.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.