Home / 243,781.14-336,435.56-136,385.75

Finding the Fourth Proportional to 243,781.14, 336,435.56 and 136,385.75

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Solution

The fourth proportional to 243,781.14, 336,435.56 and 136,385.75 is: 188,222.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,781.14 : 336,435.56 = 136,385.75 : x
  2. Step 2: Convert to fraction form
    243,781.14/336,435.56 = 136,385.75/x
  3. Step 3: Cross multiply
    243,781.14x = 336,435.56 × 136,385.75
  4. Step 4: Simplify right side
    243,781.14x = 45,885,013,813.16
  5. Step 5: Solve for x
    x = 45,885,013,813.16/243,781.14
  6. Step 6: Final answer
    x = 188,222.16

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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.