Home / 149,810.92-206,740.14-82,742.92

Finding the Fourth Proportional to 149,810.92, 206,740.14 and 82,742.92

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Solution

The fourth proportional to 149,810.92, 206,740.14 and 82,742.92 is: 114,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,810.92 : 206,740.14 = 82,742.92 : x
  2. Step 2: Convert to fraction form
    149,810.92/206,740.14 = 82,742.92/x
  3. Step 3: Cross multiply
    149,810.92x = 206,740.14 × 82,742.92
  4. Step 4: Simplify right side
    149,810.92x = 17,106,282,864.81
  5. Step 5: Solve for x
    x = 17,106,282,864.81/149,810.92
  6. Step 6: Final answer
    x = 114,185.82

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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.