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Finding the Fourth Proportional to 157,975.56, 218,086.56 and 107,256.60

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Solution

The fourth proportional to 157,975.56, 218,086.56 and 107,256.60 is: 148,068.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,975.56 : 218,086.56 = 107,256.60 : x
  2. Step 2: Convert to fraction form
    157,975.56/218,086.56 = 107,256.60/x
  3. Step 3: Cross multiply
    157,975.56x = 218,086.56 × 107,256.60
  4. Step 4: Simplify right side
    157,975.56x = 23,391,222,931.30
  5. Step 5: Solve for x
    x = 23,391,222,931.30/157,975.56
  6. Step 6: Final answer
    x = 148,068.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.