Home / 134,536.38-185,660.21-77,980.56

Finding the Fourth Proportional to 134,536.38, 185,660.21 and 77,980.56

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Solution

The fourth proportional to 134,536.38, 185,660.21 and 77,980.56 is: 107,613.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,536.38 : 185,660.21 = 77,980.56 : x
  2. Step 2: Convert to fraction form
    134,536.38/185,660.21 = 77,980.56/x
  3. Step 3: Cross multiply
    134,536.38x = 185,660.21 × 77,980.56
  4. Step 4: Simplify right side
    134,536.38x = 14,477,887,145.52
  5. Step 5: Solve for x
    x = 14,477,887,145.52/134,536.38
  6. Step 6: Final answer
    x = 107,613.18

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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.