Home / 243,783.14-336,438.32-136,387.75

Finding the Fourth Proportional to 243,783.14, 336,438.32 and 136,387.75

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Solution

The fourth proportional to 243,783.14, 336,438.32 and 136,387.75 is: 188,224.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,783.14 : 336,438.32 = 136,387.75 : x
  2. Step 2: Convert to fraction form
    243,783.14/336,438.32 = 136,387.75/x
  3. Step 3: Cross multiply
    243,783.14x = 336,438.32 × 136,387.75
  4. Step 4: Simplify right side
    243,783.14x = 45,886,065,478.58
  5. Step 5: Solve for x
    x = 45,886,065,478.58/243,783.14
  6. Step 6: Final answer
    x = 188,224.93

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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.