Home / 207,864.78-286,899.33-135,141.12

Finding the Fourth Proportional to 207,864.78, 286,899.33 and 135,141.12

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Solution

The fourth proportional to 207,864.78, 286,899.33 and 135,141.12 is: 186,524.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,864.78 : 286,899.33 = 135,141.12 : x
  2. Step 2: Convert to fraction form
    207,864.78/286,899.33 = 135,141.12/x
  3. Step 3: Cross multiply
    207,864.78x = 286,899.33 × 135,141.12
  4. Step 4: Simplify right side
    207,864.78x = 38,771,896,783.45
  5. Step 5: Solve for x
    x = 38,771,896,783.45/207,864.78
  6. Step 6: Final answer
    x = 186,524.61

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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.