Home / 243,786.15-336,427.02-136,366.17

Finding the Fourth Proportional to 243,786.15, 336,427.02 and 136,366.17

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Solution

The fourth proportional to 243,786.15, 336,427.02 and 136,366.17 is: 188,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,786.15 : 336,427.02 = 136,366.17 : x
  2. Step 2: Convert to fraction form
    243,786.15/336,427.02 = 136,366.17/x
  3. Step 3: Cross multiply
    243,786.15x = 336,427.02 × 136,366.17
  4. Step 4: Simplify right side
    243,786.15x = 45,877,264,201.91
  5. Step 5: Solve for x
    x = 45,877,264,201.91/243,786.15
  6. Step 6: Final answer
    x = 188,186.51

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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.