Home / 100,194.13-138,361.57-64,446.20

Finding the Fourth Proportional to 100,194.13, 138,361.57 and 64,446.20

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Solution

The fourth proportional to 100,194.13, 138,361.57 and 64,446.20 is: 88,996.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,194.13 : 138,361.57 = 64,446.20 : x
  2. Step 2: Convert to fraction form
    100,194.13/138,361.57 = 64,446.20/x
  3. Step 3: Cross multiply
    100,194.13x = 138,361.57 × 64,446.20
  4. Step 4: Simplify right side
    100,194.13x = 8,916,877,078.47
  5. Step 5: Solve for x
    x = 8,916,877,078.47/100,194.13
  6. Step 6: Final answer
    x = 88,996.00

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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.