Home / 135,730.71-187,313.38-82,005.35

Finding the Fourth Proportional to 135,730.71, 187,313.38 and 82,005.35

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Solution

The fourth proportional to 135,730.71, 187,313.38 and 82,005.35 is: 113,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,730.71 : 187,313.38 = 82,005.35 : x
  2. Step 2: Convert to fraction form
    135,730.71/187,313.38 = 82,005.35/x
  3. Step 3: Cross multiply
    135,730.71x = 187,313.38 × 82,005.35
  4. Step 4: Simplify right side
    135,730.71x = 15,360,698,145.00
  5. Step 5: Solve for x
    x = 15,360,698,145.00/135,730.71
  6. Step 6: Final answer
    x = 113,170.40

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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.