Home / 136,816.04-188,754.18-83,080.76

Finding the Fourth Proportional to 136,816.04, 188,754.18 and 83,080.76

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Solution

The fourth proportional to 136,816.04, 188,754.18 and 83,080.76 is: 114,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,816.04 : 188,754.18 = 83,080.76 : x
  2. Step 2: Convert to fraction form
    136,816.04/188,754.18 = 83,080.76/x
  3. Step 3: Cross multiply
    136,816.04x = 188,754.18 × 83,080.76
  4. Step 4: Simplify right side
    136,816.04x = 15,681,840,727.58
  5. Step 5: Solve for x
    x = 15,681,840,727.58/136,816.04
  6. Step 6: Final answer
    x = 114,619.90

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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.