Home / 155,804.46-215,054.20-92,164.38

Finding the Fourth Proportional to 155,804.46, 215,054.20 and 92,164.38

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Solution

The fourth proportional to 155,804.46, 215,054.20 and 92,164.38 is: 127,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,804.46 : 215,054.20 = 92,164.38 : x
  2. Step 2: Convert to fraction form
    155,804.46/215,054.20 = 92,164.38/x
  3. Step 3: Cross multiply
    155,804.46x = 215,054.20 × 92,164.38
  4. Step 4: Simplify right side
    155,804.46x = 19,820,337,009.40
  5. Step 5: Solve for x
    x = 19,820,337,009.40/155,804.46
  6. Step 6: Final answer
    x = 127,212.90

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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.