Home / 76,536.06-105,700.48-68,187.20

Finding the Fourth Proportional to 76,536.06, 105,700.48 and 68,187.20

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Solution

The fourth proportional to 76,536.06, 105,700.48 and 68,187.20 is: 94,170.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,536.06 : 105,700.48 = 68,187.20 : x
  2. Step 2: Convert to fraction form
    76,536.06/105,700.48 = 68,187.20/x
  3. Step 3: Cross multiply
    76,536.06x = 105,700.48 × 68,187.20
  4. Step 4: Simplify right side
    76,536.06x = 7,207,419,769.86
  5. Step 5: Solve for x
    x = 7,207,419,769.86/76,536.06
  6. Step 6: Final answer
    x = 94,170.25

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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.