Home / 147,905.76-204,131.20-84,249.60

Finding the Fourth Proportional to 147,905.76, 204,131.20 and 84,249.60

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Solution

The fourth proportional to 147,905.76, 204,131.20 and 84,249.60 is: 116,276.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905.76 : 204,131.20 = 84,249.60 : x
  2. Step 2: Convert to fraction form
    147,905.76/204,131.20 = 84,249.60/x
  3. Step 3: Cross multiply
    147,905.76x = 204,131.20 × 84,249.60
  4. Step 4: Simplify right side
    147,905.76x = 17,197,971,947.52
  5. Step 5: Solve for x
    x = 17,197,971,947.52/147,905.76
  6. Step 6: Final answer
    x = 116,276.55

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1.5x scale

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.