Home / 138,433.10-207,358.04-112,189.10

Finding the Fourth Proportional to 138,433.10, 207,358.04 and 112,189.10

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Solution

The fourth proportional to 138,433.10, 207,358.04 and 112,189.10 is: 168,047.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,433.10 : 207,358.04 = 112,189.10 : x
  2. Step 2: Convert to fraction form
    138,433.10/207,358.04 = 112,189.10/x
  3. Step 3: Cross multiply
    138,433.10x = 207,358.04 × 112,189.10
  4. Step 4: Simplify right side
    138,433.10x = 23,263,311,885.36
  5. Step 5: Solve for x
    x = 23,263,311,885.36/138,433.10
  6. Step 6: Final answer
    x = 168,047.32

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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.