Home / 155,961.63-215,227.56-84,342.15

Finding the Fourth Proportional to 155,961.63, 215,227.56 and 84,342.15

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Solution

The fourth proportional to 155,961.63, 215,227.56 and 84,342.15 is: 116,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,961.63 : 215,227.56 = 84,342.15 : x
  2. Step 2: Convert to fraction form
    155,961.63/215,227.56 = 84,342.15/x
  3. Step 3: Cross multiply
    155,961.63x = 215,227.56 × 84,342.15
  4. Step 4: Simplify right side
    155,961.63x = 18,152,755,149.65
  5. Step 5: Solve for x
    x = 18,152,755,149.65/155,961.63
  6. Step 6: Final answer
    x = 116,392.44

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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.