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Finding the Fourth Proportional to 111,330.45, 166,995.68 and 101,160.90

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Solution

The fourth proportional to 111,330.45, 166,995.68 and 101,160.90 is: 151,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,330.45 : 166,995.68 = 101,160.90 : x
  2. Step 2: Convert to fraction form
    111,330.45/166,995.68 = 101,160.90/x
  3. Step 3: Cross multiply
    111,330.45x = 166,995.68 × 101,160.90
  4. Step 4: Simplify right side
    111,330.45x = 16,893,432,779.11
  5. Step 5: Solve for x
    x = 16,893,432,779.11/111,330.45
  6. Step 6: Final answer
    x = 151,741.35

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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.