Home / 99,123.21-136,786.36-53,800.23

Finding the Fourth Proportional to 99,123.21, 136,786.36 and 53,800.23

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Solution

The fourth proportional to 99,123.21, 136,786.36 and 53,800.23 is: 74,242.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,123.21 : 136,786.36 = 53,800.23 : x
  2. Step 2: Convert to fraction form
    99,123.21/136,786.36 = 53,800.23/x
  3. Step 3: Cross multiply
    99,123.21x = 136,786.36 × 53,800.23
  4. Step 4: Simplify right side
    99,123.21x = 7,359,137,628.86
  5. Step 5: Solve for x
    x = 7,359,137,628.86/99,123.21
  6. Step 6: Final answer
    x = 74,242.33

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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.