Home / 107,470.40-148,163.84-90,674.24

Finding the Fourth Proportional to 107,470.40, 148,163.84 and 90,674.24

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Solution

The fourth proportional to 107,470.40, 148,163.84 and 90,674.24 is: 125,007.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,470.40 : 148,163.84 = 90,674.24 : x
  2. Step 2: Convert to fraction form
    107,470.40/148,163.84 = 90,674.24/x
  3. Step 3: Cross multiply
    107,470.40x = 148,163.84 × 90,674.24
  4. Step 4: Simplify right side
    107,470.40x = 13,434,643,587.48
  5. Step 5: Solve for x
    x = 13,434,643,587.48/107,470.40
  6. Step 6: Final answer
    x = 125,007.85

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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.