Home / 155,939.94-215,144.25-127,209.93

Finding the Fourth Proportional to 155,939.94, 215,144.25 and 127,209.93

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Solution

The fourth proportional to 155,939.94, 215,144.25 and 127,209.93 is: 175,506.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,939.94 : 215,144.25 = 127,209.93 : x
  2. Step 2: Convert to fraction form
    155,939.94/215,144.25 = 127,209.93/x
  3. Step 3: Cross multiply
    155,939.94x = 215,144.25 × 127,209.93
  4. Step 4: Simplify right side
    155,939.94x = 27,368,484,982.40
  5. Step 5: Solve for x
    x = 27,368,484,982.40/155,939.94
  6. Step 6: Final answer
    x = 175,506.58

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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.