Home / 134,168.88-185,149.14-76,806.30

Finding the Fourth Proportional to 134,168.88, 185,149.14 and 76,806.30

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Solution

The fourth proportional to 134,168.88, 185,149.14 and 76,806.30 is: 105,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,168.88 : 185,149.14 = 76,806.30 : x
  2. Step 2: Convert to fraction form
    134,168.88/185,149.14 = 76,806.30/x
  3. Step 3: Cross multiply
    134,168.88x = 185,149.14 × 76,806.30
  4. Step 4: Simplify right side
    134,168.88x = 14,220,620,709.17
  5. Step 5: Solve for x
    x = 14,220,620,709.17/134,168.88
  6. Step 6: Final answer
    x = 105,990.45

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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.