Home / 155,995.82-215,274.84-84,376.34

Finding the Fourth Proportional to 155,995.82, 215,274.84 and 84,376.34

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Solution

The fourth proportional to 155,995.82, 215,274.84 and 84,376.34 is: 116,439.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,995.82 : 215,274.84 = 84,376.34 : x
  2. Step 2: Convert to fraction form
    155,995.82/215,274.84 = 84,376.34/x
  3. Step 3: Cross multiply
    155,995.82x = 215,274.84 × 84,376.34
  4. Step 4: Simplify right side
    155,995.82x = 18,164,103,093.29
  5. Step 5: Solve for x
    x = 18,164,103,093.29/155,995.82
  6. Step 6: Final answer
    x = 116,439.68

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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.