Home / 155,928.40-215,039.88-102,194

Finding the Fourth Proportional to 155,928.40, 215,039.88 and 102,194

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Solution

The fourth proportional to 155,928.40, 215,039.88 and 102,194 is: 140,935.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,928.40 : 215,039.88 = 102,194 : x
  2. Step 2: Convert to fraction form
    155,928.40/215,039.88 = 102,194/x
  3. Step 3: Cross multiply
    155,928.40x = 215,039.88 × 102,194
  4. Step 4: Simplify right side
    155,928.40x = 21,975,785,496.72
  5. Step 5: Solve for x
    x = 21,975,785,496.72/155,928.40
  6. Step 6: Final answer
    x = 140,935.11

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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.