Home / 243,539.22-336,086.10-136,113.78

Finding the Fourth Proportional to 243,539.22, 336,086.10 and 136,113.78

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Solution

The fourth proportional to 243,539.22, 336,086.10 and 136,113.78 is: 187,838.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,539.22 : 336,086.10 = 136,113.78 : x
  2. Step 2: Convert to fraction form
    243,539.22/336,086.10 = 136,113.78/x
  3. Step 3: Cross multiply
    243,539.22x = 336,086.10 × 136,113.78
  4. Step 4: Simplify right side
    243,539.22x = 45,745,949,476.46
  5. Step 5: Solve for x
    x = 45,745,949,476.46/243,539.22
  6. Step 6: Final answer
    x = 187,838.12

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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.