Home / 166,386.36-229,609.80-90,935.40

Finding the Fourth Proportional to 166,386.36, 229,609.80 and 90,935.40

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Solution

The fourth proportional to 166,386.36, 229,609.80 and 90,935.40 is: 125,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,386.36 : 229,609.80 = 90,935.40 : x
  2. Step 2: Convert to fraction form
    166,386.36/229,609.80 = 90,935.40/x
  3. Step 3: Cross multiply
    166,386.36x = 229,609.80 × 90,935.40
  4. Step 4: Simplify right side
    166,386.36x = 20,879,659,006.92
  5. Step 5: Solve for x
    x = 20,879,659,006.92/166,386.36
  6. Step 6: Final answer
    x = 125,489.01

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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.