Home / 135,438.40-186,812.49-92,923.12

Finding the Fourth Proportional to 135,438.40, 186,812.49 and 92,923.12

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Solution

The fourth proportional to 135,438.40, 186,812.49 and 92,923.12 is: 128,170.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,438.40 : 186,812.49 = 92,923.12 : x
  2. Step 2: Convert to fraction form
    135,438.40/186,812.49 = 92,923.12/x
  3. Step 3: Cross multiply
    135,438.40x = 186,812.49 × 92,923.12
  4. Step 4: Simplify right side
    135,438.40x = 17,359,199,425.77
  5. Step 5: Solve for x
    x = 17,359,199,425.77/135,438.40
  6. Step 6: Final answer
    x = 128,170.44

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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.