Home / 118,839.60-178,259.40-76,849.20

Finding the Fourth Proportional to 118,839.60, 178,259.40 and 76,849.20

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Solution

The fourth proportional to 118,839.60, 178,259.40 and 76,849.20 is: 115,273.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,839.60 : 178,259.40 = 76,849.20 : x
  2. Step 2: Convert to fraction form
    118,839.60/178,259.40 = 76,849.20/x
  3. Step 3: Cross multiply
    118,839.60x = 178,259.40 × 76,849.20
  4. Step 4: Simplify right side
    118,839.60x = 13,699,092,282.48
  5. Step 5: Solve for x
    x = 13,699,092,282.48/118,839.60
  6. Step 6: Final answer
    x = 115,273.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.