Home / 155,893.20-233,601.89-81,037.65

Finding the Fourth Proportional to 155,893.20, 233,601.89 and 81,037.65

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Solution

The fourth proportional to 155,893.20, 233,601.89 and 81,037.65 is: 121,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,893.20 : 233,601.89 = 81,037.65 : x
  2. Step 2: Convert to fraction form
    155,893.20/233,601.89 = 81,037.65/x
  3. Step 3: Cross multiply
    155,893.20x = 233,601.89 × 81,037.65
  4. Step 4: Simplify right side
    155,893.20x = 18,930,549,127.81
  5. Step 5: Solve for x
    x = 18,930,549,127.81/155,893.20
  6. Step 6: Final answer
    x = 121,432.81

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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.