Home / 138,427.10-207,349.04-112,183.10

Finding the Fourth Proportional to 138,427.10, 207,349.04 and 112,183.10

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Solution

The fourth proportional to 138,427.10, 207,349.04 and 112,183.10 is: 168,038.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,427.10 : 207,349.04 = 112,183.10 : x
  2. Step 2: Convert to fraction form
    138,427.10/207,349.04 = 112,183.10/x
  3. Step 3: Cross multiply
    138,427.10x = 207,349.04 × 112,183.10
  4. Step 4: Simplify right side
    138,427.10x = 23,261,058,089.22
  5. Step 5: Solve for x
    x = 23,261,058,089.22/138,427.10
  6. Step 6: Final answer
    x = 168,038.33

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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.