Home / 207,113.08-285,540.78-135,369.76

Finding the Fourth Proportional to 207,113.08, 285,540.78 and 135,369.76

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Solution

The fourth proportional to 207,113.08, 285,540.78 and 135,369.76 is: 186,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,113.08 : 285,540.78 = 135,369.76 : x
  2. Step 2: Convert to fraction form
    207,113.08/285,540.78 = 135,369.76/x
  3. Step 3: Cross multiply
    207,113.08x = 285,540.78 × 135,369.76
  4. Step 4: Simplify right side
    207,113.08x = 38,653,586,858.81
  5. Step 5: Solve for x
    x = 38,653,586,858.81/207,113.08
  6. Step 6: Final answer
    x = 186,630.35

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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.