Home / 135,334.24-186,758.64-74,904.88

Finding the Fourth Proportional to 135,334.24, 186,758.64 and 74,904.88

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Solution

The fourth proportional to 135,334.24, 186,758.64 and 74,904.88 is: 103,367.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,334.24 : 186,758.64 = 74,904.88 : x
  2. Step 2: Convert to fraction form
    135,334.24/186,758.64 = 74,904.88/x
  3. Step 3: Cross multiply
    135,334.24x = 186,758.64 × 74,904.88
  4. Step 4: Simplify right side
    135,334.24x = 13,989,133,518.16
  5. Step 5: Solve for x
    x = 13,989,133,518.16/135,334.24
  6. Step 6: Final answer
    x = 103,367.29

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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.