Home / 155,835.40-233,906.70-77,038.60

Finding the Fourth Proportional to 155,835.40, 233,906.70 and 77,038.60

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Solution

The fourth proportional to 155,835.40, 233,906.70 and 77,038.60 is: 115,633.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,835.40 : 233,906.70 = 77,038.60 : x
  2. Step 2: Convert to fraction form
    155,835.40/233,906.70 = 77,038.60/x
  3. Step 3: Cross multiply
    155,835.40x = 233,906.70 × 77,038.60
  4. Step 4: Simplify right side
    155,835.40x = 18,019,844,698.62
  5. Step 5: Solve for x
    x = 18,019,844,698.62/155,835.40
  6. Step 6: Final answer
    x = 115,633.83

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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.