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Finding the Fourth Proportional to 161,154.81, 241,695.77 and 61,279.38

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Solution

The fourth proportional to 161,154.81, 241,695.77 and 61,279.38 is: 91,905.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,154.81 : 241,695.77 = 61,279.38 : x
  2. Step 2: Convert to fraction form
    161,154.81/241,695.77 = 61,279.38/x
  3. Step 3: Cross multiply
    161,154.81x = 241,695.77 × 61,279.38
  4. Step 4: Simplify right side
    161,154.81x = 14,810,966,627.83
  5. Step 5: Solve for x
    x = 14,810,966,627.83/161,154.81
  6. Step 6: Final answer
    x = 91,905.21

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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.