Home / 243,782.14-336,436.94-136,386.75

Finding the Fourth Proportional to 243,782.14, 336,436.94 and 136,386.75

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Solution

The fourth proportional to 243,782.14, 336,436.94 and 136,386.75 is: 188,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,782.14 : 336,436.94 = 136,386.75 : x
  2. Step 2: Convert to fraction form
    243,782.14/336,436.94 = 136,386.75/x
  3. Step 3: Cross multiply
    243,782.14x = 336,436.94 × 136,386.75
  4. Step 4: Simplify right side
    243,782.14x = 45,885,540,826.55
  5. Step 5: Solve for x
    x = 45,885,540,826.55/243,782.14
  6. Step 6: Final answer
    x = 188,223.55

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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.