Home / 145,297.80-200,511.14-81,635.56

Finding the Fourth Proportional to 145,297.80, 200,511.14 and 81,635.56

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Solution

The fourth proportional to 145,297.80, 200,511.14 and 81,635.56 is: 112,657.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,297.80 : 200,511.14 = 81,635.56 : x
  2. Step 2: Convert to fraction form
    145,297.80/200,511.14 = 81,635.56/x
  3. Step 3: Cross multiply
    145,297.80x = 200,511.14 × 81,635.56
  4. Step 4: Simplify right side
    145,297.80x = 16,368,839,200.14
  5. Step 5: Solve for x
    x = 16,368,839,200.14/145,297.80
  6. Step 6: Final answer
    x = 112,657.17

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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.