Home / 127,942.60-191,913.90-115,695.40

Finding the Fourth Proportional to 127,942.60, 191,913.90 and 115,695.40

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Solution

The fourth proportional to 127,942.60, 191,913.90 and 115,695.40 is: 173,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,942.60 : 191,913.90 = 115,695.40 : x
  2. Step 2: Convert to fraction form
    127,942.60/191,913.90 = 115,695.40/x
  3. Step 3: Cross multiply
    127,942.60x = 191,913.90 × 115,695.40
  4. Step 4: Simplify right side
    127,942.60x = 22,203,555,426.06
  5. Step 5: Solve for x
    x = 22,203,555,426.06/127,942.60
  6. Step 6: Final answer
    x = 173,543.10

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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.