Home / 122,398.32-168,908.10-68,684.40

Finding the Fourth Proportional to 122,398.32, 168,908.10 and 68,684.40

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Solution

The fourth proportional to 122,398.32, 168,908.10 and 68,684.40 is: 94,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,398.32 : 168,908.10 = 68,684.40 : x
  2. Step 2: Convert to fraction form
    122,398.32/168,908.10 = 68,684.40/x
  3. Step 3: Cross multiply
    122,398.32x = 168,908.10 × 68,684.40
  4. Step 4: Simplify right side
    122,398.32x = 11,601,351,503.64
  5. Step 5: Solve for x
    x = 11,601,351,503.64/122,398.32
  6. Step 6: Final answer
    x = 94,783.58

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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.