Home / 122,277.81-183,698.19-86,337.30

Finding the Fourth Proportional to 122,277.81, 183,698.19 and 86,337.30

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Solution

The fourth proportional to 122,277.81, 183,698.19 and 86,337.30 is: 129,704.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,277.81 : 183,698.19 = 86,337.30 : x
  2. Step 2: Convert to fraction form
    122,277.81/183,698.19 = 86,337.30/x
  3. Step 3: Cross multiply
    122,277.81x = 183,698.19 × 86,337.30
  4. Step 4: Simplify right side
    122,277.81x = 15,860,005,739.49
  5. Step 5: Solve for x
    x = 15,860,005,739.49/122,277.81
  6. Step 6: Final answer
    x = 129,704.69

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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.