Home / 115,728.64-173,592.96-109,818.88

Finding the Fourth Proportional to 115,728.64, 173,592.96 and 109,818.88

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Solution

The fourth proportional to 115,728.64, 173,592.96 and 109,818.88 is: 164,728.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,728.64 : 173,592.96 = 109,818.88 : x
  2. Step 2: Convert to fraction form
    115,728.64/173,592.96 = 109,818.88/x
  3. Step 3: Cross multiply
    115,728.64x = 173,592.96 × 109,818.88
  4. Step 4: Simplify right side
    115,728.64x = 19,063,784,443.08
  5. Step 5: Solve for x
    x = 19,063,784,443.08/115,728.64
  6. Step 6: Final answer
    x = 164,728.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.