Home / 111,134.90-166,702.35-103,699.10

Finding the Fourth Proportional to 111,134.90, 166,702.35 and 103,699.10

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Solution

The fourth proportional to 111,134.90, 166,702.35 and 103,699.10 is: 155,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,134.90 : 166,702.35 = 103,699.10 : x
  2. Step 2: Convert to fraction form
    111,134.90/166,702.35 = 103,699.10/x
  3. Step 3: Cross multiply
    111,134.90x = 166,702.35 × 103,699.10
  4. Step 4: Simplify right side
    111,134.90x = 17,286,883,662.89
  5. Step 5: Solve for x
    x = 17,286,883,662.89/111,134.90
  6. Step 6: Final answer
    x = 155,548.65

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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.