Home / 243,785.89-336,426.68-136,365.92

Finding the Fourth Proportional to 243,785.89, 336,426.68 and 136,365.92

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Solution

The fourth proportional to 243,785.89, 336,426.68 and 136,365.92 is: 188,186.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,785.89 : 336,426.68 = 136,365.92 : x
  2. Step 2: Convert to fraction form
    243,785.89/336,426.68 = 136,365.92/x
  3. Step 3: Cross multiply
    243,785.89x = 336,426.68 × 136,365.92
  4. Step 4: Simplify right side
    243,785.89x = 45,877,133,730.75
  5. Step 5: Solve for x
    x = 45,877,133,730.75/243,785.89
  6. Step 6: Final answer
    x = 188,186.17

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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.