Home / 117,350.68-161,901.42-77,086.12

Finding the Fourth Proportional to 117,350.68, 161,901.42 and 77,086.12

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Solution

The fourth proportional to 117,350.68, 161,901.42 and 77,086.12 is: 106,350.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,350.68 : 161,901.42 = 77,086.12 : x
  2. Step 2: Convert to fraction form
    117,350.68/161,901.42 = 77,086.12/x
  3. Step 3: Cross multiply
    117,350.68x = 161,901.42 × 77,086.12
  4. Step 4: Simplify right side
    117,350.68x = 12,480,352,290.29
  5. Step 5: Solve for x
    x = 12,480,352,290.29/117,350.68
  6. Step 6: Final answer
    x = 106,350.92

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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.