Home / 243,515.15-336,049.93-136,085.15

Finding the Fourth Proportional to 243,515.15, 336,049.93 and 136,085.15

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Solution

The fourth proportional to 243,515.15, 336,049.93 and 136,085.15 is: 187,796.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,515.15 : 336,049.93 = 136,085.15 : x
  2. Step 2: Convert to fraction form
    243,515.15/336,049.93 = 136,085.15/x
  3. Step 3: Cross multiply
    243,515.15x = 336,049.93 × 136,085.15
  4. Step 4: Simplify right side
    243,515.15x = 45,731,405,131.54
  5. Step 5: Solve for x
    x = 45,731,405,131.54/243,515.15
  6. Step 6: Final answer
    x = 187,796.96

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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.