Home / 151,782.12-209,453.85-83,797.61

Finding the Fourth Proportional to 151,782.12, 209,453.85 and 83,797.61

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Solution

The fourth proportional to 151,782.12, 209,453.85 and 83,797.61 is: 115,637.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,782.12 : 209,453.85 = 83,797.61 : x
  2. Step 2: Convert to fraction form
    151,782.12/209,453.85 = 83,797.61/x
  3. Step 3: Cross multiply
    151,782.12x = 209,453.85 × 83,797.61
  4. Step 4: Simplify right side
    151,782.12x = 17,551,730,988.03
  5. Step 5: Solve for x
    x = 17,551,730,988.03/151,782.12
  6. Step 6: Final answer
    x = 115,637.67

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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.