Home / 155,780.58-214,977.30-84,160.57

Finding the Fourth Proportional to 155,780.58, 214,977.30 and 84,160.57

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Solution

The fourth proportional to 155,780.58, 214,977.30 and 84,160.57 is: 116,141.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,780.58 : 214,977.30 = 84,160.57 : x
  2. Step 2: Convert to fraction form
    155,780.58/214,977.30 = 84,160.57/x
  3. Step 3: Cross multiply
    155,780.58x = 214,977.30 × 84,160.57
  4. Step 4: Simplify right side
    155,780.58x = 18,092,612,105.06
  5. Step 5: Solve for x
    x = 18,092,612,105.06/155,780.58
  6. Step 6: Final answer
    x = 116,141.64

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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.