Home / 243,536.16-336,078.78-136,106.16

Finding the Fourth Proportional to 243,536.16, 336,078.78 and 136,106.16

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Solution

The fourth proportional to 243,536.16, 336,078.78 and 136,106.16 is: 187,825.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,536.16 : 336,078.78 = 136,106.16 : x
  2. Step 2: Convert to fraction form
    243,536.16/336,078.78 = 136,106.16/x
  3. Step 3: Cross multiply
    243,536.16x = 336,078.78 × 136,106.16
  4. Step 4: Simplify right side
    243,536.16x = 45,742,392,203.28
  5. Step 5: Solve for x
    x = 45,742,392,203.28/243,536.16
  6. Step 6: Final answer
    x = 187,825.87

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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.