Home / 155,818.31-215,029.34-84,198.33

Finding the Fourth Proportional to 155,818.31, 215,029.34 and 84,198.33

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Solution

The fourth proportional to 155,818.31, 215,029.34 and 84,198.33 is: 116,193.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,818.31 : 215,029.34 = 84,198.33 : x
  2. Step 2: Convert to fraction form
    155,818.31/215,029.34 = 84,198.33/x
  3. Step 3: Cross multiply
    155,818.31x = 215,029.34 × 84,198.33
  4. Step 4: Simplify right side
    155,818.31x = 18,105,110,908.01
  5. Step 5: Solve for x
    x = 18,105,110,908.01/155,818.31
  6. Step 6: Final answer
    x = 116,193.74

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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.