Home / 155,762.09-214,951.40-84,141.89

Finding the Fourth Proportional to 155,762.09, 214,951.40 and 84,141.89

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Solution

The fourth proportional to 155,762.09, 214,951.40 and 84,141.89 is: 116,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,762.09 : 214,951.40 = 84,141.89 : x
  2. Step 2: Convert to fraction form
    155,762.09/214,951.40 = 84,141.89/x
  3. Step 3: Cross multiply
    155,762.09x = 214,951.40 × 84,141.89
  4. Step 4: Simplify right side
    155,762.09x = 18,086,415,979.39
  5. Step 5: Solve for x
    x = 18,086,415,979.39/155,762.09
  6. Step 6: Final answer
    x = 116,115.65

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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.