Home / 111,748.26-166,569.66-102,780.18

Finding the Fourth Proportional to 111,748.26, 166,569.66 and 102,780.18

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Solution

The fourth proportional to 111,748.26, 166,569.66 and 102,780.18 is: 153,202.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,748.26 : 166,569.66 = 102,780.18 : x
  2. Step 2: Convert to fraction form
    111,748.26/166,569.66 = 102,780.18/x
  3. Step 3: Cross multiply
    111,748.26x = 166,569.66 × 102,780.18
  4. Step 4: Simplify right side
    111,748.26x = 17,120,059,637.34
  5. Step 5: Solve for x
    x = 17,120,059,637.34/111,748.26
  6. Step 6: Final answer
    x = 153,202.02

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.