Home / 106,506.36-159,743.34-66,942.72

Finding the Fourth Proportional to 106,506.36, 159,743.34 and 66,942.72

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Solution

The fourth proportional to 106,506.36, 159,743.34 and 66,942.72 is: 100,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,506.36 : 159,743.34 = 66,942.72 : x
  2. Step 2: Convert to fraction form
    106,506.36/159,743.34 = 66,942.72/x
  3. Step 3: Cross multiply
    106,506.36x = 159,743.34 × 66,942.72
  4. Step 4: Simplify right side
    106,506.36x = 10,693,653,681.48
  5. Step 5: Solve for x
    x = 10,693,653,681.48/106,506.36
  6. Step 6: Final answer
    x = 100,403.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.