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Finding the Fourth Proportional to 159,357.67, 239,037.87 and 45,505.18

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Solution

The fourth proportional to 159,357.67, 239,037.87 and 45,505.18 is: 68,258.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,357.67 : 239,037.87 = 45,505.18 : x
  2. Step 2: Convert to fraction form
    159,357.67/239,037.87 = 45,505.18/x
  3. Step 3: Cross multiply
    159,357.67x = 239,037.87 × 45,505.18
  4. Step 4: Simplify right side
    159,357.67x = 10,877,461,301.17
  5. Step 5: Solve for x
    x = 10,877,461,301.17/159,357.67
  6. Step 6: Final answer
    x = 68,258.16

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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.