Home / 126,147.79-173,903.10-99,243.64

Finding the Fourth Proportional to 126,147.79, 173,903.10 and 99,243.64

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Solution

The fourth proportional to 126,147.79, 173,903.10 and 99,243.64 is: 136,813.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,147.79 : 173,903.10 = 99,243.64 : x
  2. Step 2: Convert to fraction form
    126,147.79/173,903.10 = 99,243.64/x
  3. Step 3: Cross multiply
    126,147.79x = 173,903.10 × 99,243.64
  4. Step 4: Simplify right side
    126,147.79x = 17,258,776,651.28
  5. Step 5: Solve for x
    x = 17,258,776,651.28/126,147.79
  6. Step 6: Final answer
    x = 136,813.94

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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.