Home / 207,206.64-285,988.32-135,453.60

Finding the Fourth Proportional to 207,206.64, 285,988.32 and 135,453.60

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Solution

The fourth proportional to 207,206.64, 285,988.32 and 135,453.60 is: 186,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,206.64 : 285,988.32 = 135,453.60 : x
  2. Step 2: Convert to fraction form
    207,206.64/285,988.32 = 135,453.60/x
  3. Step 3: Cross multiply
    207,206.64x = 285,988.32 × 135,453.60
  4. Step 4: Simplify right side
    207,206.64x = 38,738,147,501.95
  5. Step 5: Solve for x
    x = 38,738,147,501.95/207,206.64
  6. Step 6: Final answer
    x = 186,954.18

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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.