Home / 111,002.60-166,528.51-51,805.98

Finding the Fourth Proportional to 111,002.60, 166,528.51 and 51,805.98

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Solution

The fourth proportional to 111,002.60, 166,528.51 and 51,805.98 is: 77,720.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,002.60 : 166,528.51 = 51,805.98 : x
  2. Step 2: Convert to fraction form
    111,002.60/166,528.51 = 51,805.98/x
  3. Step 3: Cross multiply
    111,002.60x = 166,528.51 × 51,805.98
  4. Step 4: Simplify right side
    111,002.60x = 8,627,172,528.97
  5. Step 5: Solve for x
    x = 8,627,172,528.97/111,002.60
  6. Step 6: Final answer
    x = 77,720.45

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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.