Home / 155,780.94-214,977.76-84,160.82

Finding the Fourth Proportional to 155,780.94, 214,977.76 and 84,160.82

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Solution

The fourth proportional to 155,780.94, 214,977.76 and 84,160.82 is: 116,141.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,780.94 : 214,977.76 = 84,160.82 : x
  2. Step 2: Convert to fraction form
    155,780.94/214,977.76 = 84,160.82/x
  3. Step 3: Cross multiply
    155,780.94x = 214,977.76 × 84,160.82
  4. Step 4: Simplify right side
    155,780.94x = 18,092,704,563.36
  5. Step 5: Solve for x
    x = 18,092,704,563.36/155,780.94
  6. Step 6: Final answer
    x = 116,141.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.