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Finding the Fourth Proportional to 157,145.67, 216,823.14 and 92,617.47

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Solution

The fourth proportional to 157,145.67, 216,823.14 and 92,617.47 is: 127,789.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,145.67 : 216,823.14 = 92,617.47 : x
  2. Step 2: Convert to fraction form
    157,145.67/216,823.14 = 92,617.47/x
  3. Step 3: Cross multiply
    157,145.67x = 216,823.14 × 92,617.47
  4. Step 4: Simplify right side
    157,145.67x = 20,081,610,664.26
  5. Step 5: Solve for x
    x = 20,081,610,664.26/157,145.67
  6. Step 6: Final answer
    x = 127,789.78

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