Home / 136,914.59-188,935.38-76,473.20

Finding the Fourth Proportional to 136,914.59, 188,935.38 and 76,473.20

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Solution

The fourth proportional to 136,914.59, 188,935.38 and 76,473.20 is: 105,529.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,914.59 : 188,935.38 = 76,473.20 : x
  2. Step 2: Convert to fraction form
    136,914.59/188,935.38 = 76,473.20/x
  3. Step 3: Cross multiply
    136,914.59x = 188,935.38 × 76,473.20
  4. Step 4: Simplify right side
    136,914.59x = 14,448,492,157.14
  5. Step 5: Solve for x
    x = 14,448,492,157.14/136,914.59
  6. Step 6: Final answer
    x = 105,529.24

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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.